To find the right proposal !
Internship and thesis proposals
Criteria for selection
Number of proposals
77
1
Universal oarsening dynamics and turbulence in a quantum fluid far from equilibrium
Domaines
Quantum optics/Atomic physics/Laser
Condensed matter
Nonequilibrium statistical physics
Quantum optics
Non-linear optics
Non-equilibrium Statistical Physics
Hydrodynamics/Turbulence/Fluid mechanics
Quantum gases
Type of internship
Expérimental et théorique Description
What if you could do the experiments of a cold-atom lab without a vacuum chamber, without a MOT, and with a full image of the wavefunction in every shot?
Laser light propagating through a hot rubidium vapor behaves like a two-dimensional quantum fluid, and we can image its full field (density and phase) at each step of its evolution. We recently used this to watch the fluid order itself after a quench: vortices annihilate, phase domains grow, and the dynamics turns out to be self-similar. Beyond the usual two-point correlations, we found that the whole distribution of a local order parameter rescales with a single length, the distance between vortices. During the internship you will extend this to new initial states and to two-component fluids, analyze the data (vortex tracking, cumulants, finite-size statistics), and compare with numerical simulations of the Gross–Pitaevskii equation. The work combines hands-on optics with data analysis, and you will join a small team at LKB (Jussieu).
Contact
Quentin Glorieux
20/10/2026
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Thesis :
Funding :
2
Synthetic Photonic Matter in a Quantum Fluid of Light.
Domaines
Quantum optics/Atomic physics/Laser
Condensed matter
Statistical physics
Nonequilibrium statistical physics
Quantum optics
Non-linear optics
Non-equilibrium Statistical Physics
Hydrodynamics/Turbulence/Fluid mechanics
Quantum gases
Type of internship
Expérimental et théorique Description
Photons are great carriers of information but they usually don’t interact with one another. Atoms interact but are hard to manipulate and do not benefit from the toolbox of quantum optics for detecting quantum fluctuations and entanglement. Many approaches have been proposed to marry these two systems for quantum simulation of condensed matter with strongly interacting photons, but to date, the realization of large-scale synthetic materials made of optical photons is still missing.
Our team targets this exciting goal, namely the creation of Synthetic Photonic Matter.
We are offering an internship opportunity (followed by an ERC-funded PhD) to expand the capabilities of this platform to a new level by increasing by many orders of magnitude the effective photon-photon interactions and enter the strong interaction regime.
Contact
Quentin Glorieux
20/10/2026
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Thesis :
Funding :
3
Créer de la matière artifielle à base de photons dans un Fluide Quantique de Lumière
Domaines
Condensed matter
Nonequilibrium statistical physics
Quantum information theory and quantum technologies
Quantum optics
Non-linear optics
Quantum gases
Type of internship
Expérimental Description
Les photons sont d’excellents porteurs d’information, mais ils n’interagissent généralement pas les uns
avec les autres. Les atomes interagissent, mais ils sont difficiles à manipuler et ne bénéficient pas de
l’arsenal de l’optique quantique pour d´etecter les fluctuations quantiques et l’intrication. De nombreuses
approches ont été proposées pour marier ces deux systèmes en vue de simuler de la matière
condensée avec des photons fortement interagissant, mais à ce jour, la réalisation de matériaux
synthétiques composés de photons fait encore d´efaut.
Notre équipe vise cet objectif ambitieux, à savoir la création de Matiere Photonique Synthétique.
Nous proposons une opportunité de stage (suivie d'une thèse financée par l'ERC) pour étendre les capacités de notre plateforme à un nouveau niveau en augmentant de plusieurs ordres de grandeur les interactions effectives photon-photon et en entrant dans le régime des interactions fortes.
Contact
Quentin Glorieux
20/10/2026
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Thesis :
Funding :
4
Nonlinear Josephson Readout for Single Microwave Photon Detectors
Domaines
Condensed matter
Quantum Machines
Quantum information theory and quantum technologies
Type of internship
Expérimental Description
Detecting a single microwave photon requires converting its arrival into a reliable electrical signal. In the detectors developed by the Quantronics group at CEA Saclay, the photon leaves a record in an internal transmon qubit. This internship will explore how Josephson nonlinearities can amplify that record and enable fast, faithful readout without a travelling-wave parametric amplifier.
The central idea is an asymmetric measurement: preserve the transmon’s ground state to suppress false clicks, while using its excited state to trigger a strongly distinguishable nonlinear resonator response. A dedicated Josephson element, separate from the transmon junction, will provide control over the readout nonlinearity. Combining circuit modelling, phase-space analysis, quantum simulations and cryogenic measurements, the project will investigate how bifurcation and the onset of chaos affect signal discrimination and measurement backaction. The goal is to improve photon detection while preserving transmon coherence and allowing rapid detector reset.
The internship is intended to lead to a CIFRE PhD with Qudigy, a spin-off of the Quantronics group that plans to begin commercialising single microwave photon detectors in 2027.
Contact
Emmanuel Flurin
20/10/2026
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Thesis :
Funding :
5
Stage M2 – Optique quantique et interférométrie fibrée : mesurer les effets de la gravitation sur la lumière
Domaines
Quantum optics/Atomic physics/Laser
Non-relativistic quantum field theory, quantum optics, complex quantum systems
Quantum optics
Non-linear optics
Metrology
Type of internship
Expérimental Description
Comment la gravitation influence-t-elle les états quantiques de la lumière ?
Le laboratoire ARTEMIS (CNRS – Observatoire de la Côte d'Azur, Nice) développe une expérience d'interférométrie optique visant à mesurer les effets de la dilatation gravitationnelle du temps sur des états quantiques de lumière, à l'interface entre relativité générale et physique quantique.
Le stage portera sur la construction, la stabilisation et la caractérisation d'interféromètres fibrés de type Franson. Le travail comprendra l'assemblage de systèmes optiques, le développement de boucles d'asservissement de phase, ainsi que l'analyse des sources de bruit et de la sensibilité de l'expérience. Selon l'avancement du projet, des premières mesures à très faible flux lumineux pourront également être réalisées.
Ce stage s'adresse aux étudiants de M2 en physique, optique ou photonique, motivés par la recherche expérimentale et la métrologie de précision.
Lieu : Nice, laboratoire ARTEMIS (CNRS)
Durée : 6 mois, premier semestre 2027
Contact : eleonora.polini@oca.eu
Contact
Eleonora Polini
19/10/2026
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Thesis :
Funding :
6
Implementation of a mass scanning quantum haloscope
Domaines
Condensed matter
Quantum information theory and quantum technologies
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Type of internship
Expérimental et théorique Description
There is a general consensus that only a small fraction of the matter and energy in the universe has been detected (about 5%), the rest being dark matter (about 27%) and dark energy (about 68%). Elucidating the nature and properties of such objects is one of the greatest challenges in physics. In general, dark matter (e.g. Weakly Interacting Massive Particles, WIMPs) is thought to consist of particles that "floods" galactic halos - and hence the Milky Way. Therefore, in principle, it can in principle be detected in laboratory experiments.
This work will build on our recent theoretical and experimental developments of an apparatus, called a haloscope, designed to detect axions, prominent candidates of dark matter. We will develop a full data taking setup able to probe the benchmark models for QCD axions on a mass range more than two orders of magnitude larger than the state of the art. This will enable a full test of the axion paradigm in the high mass range which should become one of the most stringent experimental constraints for dark matter models.
Contact
Takis Kontos
19/10/2026
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Thesis :
Funding :
7
2D heterostructures for optical control of individual quantum emitters
Domaines
Condensed matter
Quantum optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
Colloidal quantum emitters have emerged as promising candidates as building blocks for quantum telecomunications for their large tunability in synthesis, cristallography, colour, leading to almost lifetime-limited systems. However, due to their large surface to volume ratio, they are still sensitive to charge environment which is further translated into blinking and spectral diffusion, reducing the emission coherence. In this internship, and hopefully PhD, we propose to address the passive and active charge control by embedding the nanocrystals into a 2D van der waals heterostructure.
Contact
Antoine Borel
19/10/2026
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Thesis :
Funding :
8
Quantum computing with a hybrid array of molecules and Rydberg atoms
Domaines
Quantum optics/Atomic physics/Laser
Quantum information theory and quantum technologies
Quantum optics
Quantum gases
Type of internship
Expérimental Description
Quantum computing requires precise control of individual quantum systems and their interactions. Ultracold molecules offer long-lived quantum states for storing information, while Rydberg atoms provide strong interactions for fast quantum operations. Combining these advantages opens a new route towards scalable quantum computing.
Our group is developing an experimental platform combining individual CaF molecules and Rb atoms in reconfigurable optical tweezer arrays. The long-term goal is to exploit molecule–Rydberg atom interactions to implement fast quantum gates and new methods for manipulating and measuring molecular qubits.
During this six-month internship, the student will contribute to the development and characterisation of the hybrid experimental platform. Depending on experimental progress and the student's interests, the work may focus on optical tweezer generation and control, single-particle trapping and imaging, Rydberg excitation, or the development of experimental control and data analysis techniques. The student will work closely with researchers developing this new quantum computing platform.
Contact
Chi Zhang
19/10/2026
/
Thesis :
Funding :
9
Ultrafast Quantum Acousto-Magneto-Plasmonics
Domaines
Condensed matter
Quantum optics
Non-linear optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Metrology
Type of internship
Expérimental et théorique Description
The project will focus on active control of time-resolved photo-luminescence (PL) in functional quantum nanostructures excited with ultrashort laser pulses. Through a series of theoretical/ computa-tional tasks and the combined photoacous-tic/PL experiments the student will be asked to design a prototype of a quantum acousto-magneto-plasmonic modulator (exploiting plasmonic [1], magneto-plasmonic [2] or acoustic/magneto-acoustic [3] interactions), where various fs-laser-assisted excitations in hybrid multilayer structures would modulate the dynamics of nanoscale light emitters. Recent collaborative efforts in fs-laser nanofabrication [4] and unconventional solitonic superfluorescence in perovskites [5] will be combined to produce and characterize innovative hybrid nanostructures for quantum-optical applications. This research stay will be part of existing national and international collaborations providing access to fluorescent nanoparticles (PCnano), high-quality colloidal CdSe quantum dots and J-aggregates (France), hybrid perovskites (USA), hybrid metallic multilayers (Spain & Germany) and metasurfaces (Sweden) and advanced magneto-acoustic spectroscopy (South Korea).
[1] D. Pacifici et al., Nature Phot. 1, 402 (2007); Y. Fedutik et al. PRL 99, 136802 (2008)
[2] V.V. Temnov, Nature Phot. 6, 728 (2012); J. Opt. 18, 093002 (2016)
[3] A. Alekhin et al., Nano letters 23, 9295 (2023)
[4] P. Varlamov et al., PRL 135, 126904 (2025)
[5] M. Biliroglu et al., Nature 642, 71 (2025)
Contact
Vasily TEMNOV
18/10/2026
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Thesis :
Funding :
10
Microscopic nature of the polaron-dimeron transition
Domaines
Condensed matter
Statistical physics
Low dimension physics
Non-relativistic quantum field theory, quantum optics, complex quantum systems
Quantum gases
Type of internship
Théorique, numérique Description
Diagrammatic Monte Carlo computations with the goal of advancing the fundamental understanding of the transition between polaron and dimeron states at the microscopic level, in collaboration with cold atom experiments.
Contact
Félix Werner
16/10/2026
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Thesis :
Funding :
11
Quantum simulation with circular Rydberg states of strontium
Domaines
Quantum optics/Atomic physics/Laser
Quantum information theory and quantum technologies
Quantum gases
Type of internship
Expérimental Description
Rydberg atom arrays are powerful platforms for the quantum simulation of spin models, but the simulation time is limited by the short lifetime of laser-accessible Rydberg states. Circular Rydberg states, with maximum angular momentum, have an extremely long radiative lifetime, providing access to much longer quantum dynamics. Our group is building a quantum simulator based on circular states of strontium, a two-valence-electron atom whose ionic core remains optically active when the atom is in a Rydberg state, allowing optical manipulation directly in the Rydberg states. During the master’s internship, the student will build a new laser system to prepare Rydberg atoms in our new closed-cycle cryostat.
Contact
Brice Bakkali-Hassani
16/10/2026
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Thesis :
Funding :
12
Quantum simulation with superconducting circuits
Domaines
Condensed matter
Quantum Machines
Quantum information theory and quantum technologies
Type of internship
Expérimental Description
We will build a superconducting circuit to simulate light–matter interaction beyond the strong-coupling limit: a fluxonium qubit coupled to a microwave resonator, with a coupling tuned in situ from zero up to the deep-strong regime, where it exceeds the bare frequencies of both. In this regime, the ground state becomes an entangled atom–field superposition, a Schrödinger cat, and the Dicke and spin-boson models predict quantum phase transitions driven by the interaction itself. Measuring these states remains an open challenge: once atom and photon hybridize, one can no longer read them out separately. Our approach relies on a new coupler, a Wheatstone bridge of Josephson inductances. When the bridge is balanced, the coupling vanishes by symmetry; a magnetic flux unbalances it and tunes the coupling in magnitude and sign. Switching the coupling off within a nanosecond projects the hybridized state onto the uncoupled basis, where standard readout applies. The student will first design the device using circuit quantization and numerical simulations, and develop superconducting air bridges in the ENS clean room. Depending on progress, the student will then fabricate the full circuit and perform its first spectroscopy at 10 mK. The internship can be continued as a PhD.
Contact
Zaki Leghtas
16/10/2026
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Thesis :
Funding :
13
Theory of atom-photon and spin-photon interfaces : from cavity-QED to waveguide-QED
Domaines
Quantum optics/Atomic physics/Laser
Non-relativistic quantum field theory, quantum optics, complex quantum systems
Quantum information theory and quantum technologies
Quantum optics
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Type of internship
Théorique, numérique Description
In the framework of optical quantum computing and communication, a crucial goal consists in controlling the interaction between single atoms and single photons. This led to the development of cavity-QED, where natural or artificial atoms efficiently interact with confined photons. Many demonstrations were also performed in the simplified framework of waveguide-QED, exploiting the direct coupling of atoms to photonic waveguides, fibers, and on-chip photonic circuits
Our team in C2N has developed quantum-dot-based interfaces which can be used as efficient emitters of single photons: this led to the creation of the company Quandela. A strong challenge remains: developing quantum nodes that implement quantum logic operations on incoming photons. In such context, we use our light-matter interfaces as efficient receivers (and not just emitters) of quantum light.
In recent years, we realized that a breakthrough can also be obtained on the theory side: it becomes possible to describe many complex cavity-QED phenomena with the simpler framework of waveguide-QED . This allows implementing numerical and analytical strategies which were previously out of reach.
We now want to explore the potential of this breakthrough for spin-photon interfaces. We want to describe novel spin-photon and photon-photon entanglement schemes and to develop a simulation platform that any experimentalist could use, to predict the results of complex experiments with a variety of light-matter interfaces.
Contact
Loïc Lanco
15/10/2026
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Thesis :
Funding :
14
Probing fundamental forces with cold atoms and nanostructures
Domaines
Quantum optics/Atomic physics/Laser
Condensed matter
Fields theory/String theory
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Quantum gases
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Metrology
Type of internship
Expérimental Description
What happens when an atom comes close to a surface?
This apparently simple question lies at the intersection of quantum physics, nanoscience and fundamental physics. At short distances, an atom does not simply “see” a material surface: it interacts with the quantum fluctuations of the electromagnetic field surrounding it. These fluctuations give rise to the Casimir–Polder force, a quantum force whose behaviour in the nanometer range still raises fundamental questions. Furthermore, at short distances, deviations from known interactions could reveal new physics, such as hypothetical fifth forces predicted by several extensions of the Standard Model.
Contact
Quentin Bouton
15/10/2026
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Thesis :
Funding :
15
Plateforme versatile pour la manipulation d’états quantiques photoniques
Domaines
Quantum information theory and quantum technologies
Quantum optics
Non-linear optics
Type of internship
Expérimental et théorique Description
Parmi toutes les plateformes actuellement étudiées pour développer un ordinateur quantique, les solutions tout-optique présentent l’avantage de pouvoir facilement déplacer l’information quantique. Cet aspect est essentiel pour permettre la scalabilité. Il existe maintenant des propositions théoriques de protocoles pour implémenter efficacement sur des états photoniques toutes les portes logiques nécessaires au calcul quantique. Ces protocoles nécessitent cependant la génération d’états quantiques complexes, et ce point est au cœur de nos activités de recherche. Nous avons déjà développé une plateforme qui nous a permis de générer des états chat de Schrödinger optiques avec un taux de génération et une amplitude à la pointe de l’état de l’art. Pour développer des protocoles plus complexes, notre objectif est d’utiliser le multiplexage temporel en stockant les impulsions dans une cavité de grande longueur (~60m), et en y prélevant les impulsions que l’on veut manipuler. L’objet de ce stage sera de participer au montage de cette cavité longue, et de caractériser son asservissement en phase, avant de tester ses performances pour la génération d’états quantiques.
Contact
Rosa TUALLE-BROURI
Laboratory : LCF - UMR 8501
Team : Optique quantique - Génération d'états non-classiques
Team Website
Team : Optique quantique - Génération d'états non-classiques
Team Website
15/10/2026
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Thesis :
Funding :
16
Ultracold dysprosium atoms: a giant spin for quantum simulation and metrology
Domaines
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Quantum gases
Metrology
Type of internship
Expérimental Description
M2 internship + PhD on ultracold dysprosium atoms, whose giant spin (J=8) enables quantum simulation of topological matter and quantum-enhanced sensing. The student will help build our new-generation experiment (quantum gas microscope) in the new ENS building, then study interacting spin systems.
Contact
Sylvain Nascimbene
15/10/2026
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Thesis :
Funding :
17
Revealing topological helical edge states in topological insulators
Domaines
Condensed matter
Low dimension physics
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
Topological Insulators (TIs) hold great promise for making novel electronic devices, thanks to the existence at their boundaries of topologically protected conduction channels. Due to strong correlation of electrons spin and momentum, backscattering is prevented leading to ballistic transport. These edge states thus constitute highway for electrons. Unfortunately, the expected topological protection has turned out to be less robust than anticipated, notably due to the existence of conduction in the bulk. This complicates the fundamental study of the edge states, and motivates the search for different Tis.
During this internship/PhD, we will explore more recently discovered topological materials that are better suited to the discovery of 1D states, because they have fewer trivial. This is the case of Bi4Br4, a second order TI with high bulk gap. The internship/PhD will involve nanofabrication and quantum transport experiments at low temperature.
Contact
Richard Deblock
15/10/2026
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Thesis :
Funding :
18
Using Graphene to Probe Strong-Field Quantum Electrodynamics
Domaines
Condensed matter
Low dimension physics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental et théorique Description
Strong-field QED predicts spectacular effects, such as the decay of the vacuum into particle–antiparticle pairs (the Schwinger effect), but testing them requires fields of ~10¹⁸ V/m, far beyond petawatt lasers, and is not expected before the 2060s. Graphene offers a way around: its electrons behave as massless Dirac fermions moving at vF = c/300, so the Schwinger field drops from ~10¹⁸ V/m in vacuum to ~10⁶ V/m in a table-top transistor. In 2023 we achieved the first quantitative observation of the Schwinger effect in a graphene transistor at room temperature [Nature Physics 19, 830 (2023)].
This experimental internship opens QEDene, a 4-year ANR project with the objectives to (i) locate where and how the Schwinger effect nucleates inside the graphene channel transistor using scanning probes, optoelectronics and advanced device designs; (ii) test new strong-field QED predictions: photo-assisted Schwinger effect, Schwinger luminescence, and "vacuum boiling" regime where the dielectric permittivity itself is modified by the presence of a strong field.
Contact
Emmanuel Baudin
14/10/2026
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Thesis :
Funding :
19
A continuous cold-atom interferometer to achieve quantum noise detection limit in gravity measurements
Domaines
Quantum optics/Atomic physics/Laser
Quantum information theory and quantum technologies
Metrology
Type of internship
Expérimental Description
Context: Cold atom inertial sensors have many applications, in particular in geosciences. The operation of these sensors is based on atomic interferometry, taking advantage of superpositions between quantum states of different momentum in an atom, generated by optical transitions with two (or more) photons in order to realize accurate sensors.
The project aims at developing continuous gravity measurements using cold atom inter-ferometers in order to improve their sensitivity while maintaining their accuracy. Ultimately, this sensor must reach the detection limit, intrinsically linked to quantum projection noise. This method is very general in atomic quantum sensors and can also be applied to dif-ferent schemes of interferometer, atomic clocks...
Master thesis work: In order to realize this continuous measurement, we must use a sequence whose cycle time is twice as short as the interrogation. To achieve this regime, certain modifica-tions must be made to the existing experiment in order to simultaneously realize atomic beam splitters and mirror for three independent atomic samples with Raman transitions. Another study will focus on hybridization with a conventional sensor in order to suited to continuous operation. Major modifications in the preparation of the input quantum state and in the detection schemes must also be study and setup in order to ensure that the light emitted by the atoms dur-ing these stages does not disturb the atoms inside the interferometer.
Contact
Arnaud Landragin
14/10/2026
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Thesis :
Funding :
20
Transport, extraction and thermalization of hot carriers
Domaines
Condensed matter
Statistical physics
Low dimension physics
Quantum Machines
Nonequilibrium statistical physics
Non-equilibrium Statistical Physics
Type of internship
Expérimental et théorique Description
When high energy photons are absorbed in a material, carriers are photo-generated with a large of kinetic energy above the band edge. In some well-tailored devices, it is possible to slow down carrier relaxation such that carriers form a “hot” distribution that may offer a pathway to very high efficiency of solar energy conversion. Two positions are available . The internships will have experimental and theoretical sides, and will be carried out in the framework of the ERC ULTIMATEPV.
Contact
Jean François Guillemoles
13/10/2026
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Thesis :
Funding :
21
Electric field measurements by second harmonic generation of laser light for aerospace applications (E-FISH)
Domaines
Quantum optics/Atomic physics/Laser
Condensed matter
Nonequilibrium statistical physics
Quantum optics
Non-linear optics
Non-equilibrium Statistical Physics
Kinetic theory ; Diffusion ; Long-range interacting systems
Hydrodynamics/Turbulence/Fluid mechanics
Type of internship
Expérimental Description
Accurate knowledge of the electric field in the vicinity of electrically polarized systems is essential for understanding and modeling the plasma phenomena that may develop in their surroundings. Conventional measurement techniques, however, often rely on probes or electrodes that can significantly disturb the local electric-field distribution. A reliable characterization therefore requires a non-intrusive measurement technique capable of probing the field without altering it. Such a technique would be of particular interest for several aerospace applications. One example is the characterization of electric fields in plasmas used for combustion stabilization in aeronautical combustors or for the development of plasma actuators. Another is the measurement of the electric field around an aircraft or other aerospace structure exposed to the atmospheric electric field, with the aim of assessing its susceptibility to lightning attachment. The project will begin with the implementation of an EFISH measurement system in the laboratory. This setup will be used to evaluate the capabilities and limitations of the current state of the art. Building on this assessment, the candidate will design and implement improvements to the system, with two main objectives: improving the spatial resolution of the electric-field measurements and extending the measurement range.
Contact
Svetlana Starikovskaia
12/10/2026
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Thesis :
Funding :
22
Plasma Shchelkin sPiral: Initiation of DEtonation by nanosecond dischaRge (SPIDER)
Domaines
Quantum optics/Atomic physics/Laser
Condensed matter
Non-linear optics
Non-equilibrium Statistical Physics
Hydrodynamics/Turbulence/Fluid mechanics
Type of internship
Expérimental Description
Plasma Shchelkin sPiral: Initiation of DEtonation by nanosecond dischaRge (SPIDER)
How do detonation waves arise? Can they be suppressed when they are dangerous - or harnessed when they are useful? From next-generation Pulsed and Rotating Detonation Engines to catastrophic explosions and even supernovae, detonation physics spans engineering, safety and astrophysics. The challenge is fundamental: what triggers a detonation, how does it become self-sustained, and, the most important, how can we control it? In this M2/PhD, a new approach is suggested to be explored: using pulsed nonequilibrium plasma to control the initiation and propagation of detonation waves. The PhD project is experimental and will be carried out at two sites: plasma physics and laser diagnostics in Paris, and detonation experiments in Poitiers. Particular attention will be paid to the link between plasma-induced chemical reactivity and detonation cell size, as well as to the role of the Zeldovich gradient mechanism in the transition from deflagration to detonation. Advanced laser techniques as TALIF, E-FISH, Thomson scattering will be used to control plasma parameters. Close collaboration with CERFACS will provide, on the basis of complex 2D and 3D-numerical modeling, an access to parametric study and better understanding of conditions of the experiments.
Contact
Svetlana Starikovskaia
12/10/2026
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Thesis :
Funding :
23
Photon-Correlation Spectroscopy of Quantum Cutting Perovskite Nanocrystals
Domaines
Quantum optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
Quantum cutting (QC) converts one absorbed high-energy photon into two lower-energy emissive excitations. Yb-doped halide-perovskite nanocrystals are particularly promising because the semiconductor host provides strong UV-visible absorption, while Yb^3+ emits near 980 nm, within the absorption range of silicon. Absolute photoluminescence quantum yields (PLQYs) above 100% have been reported for Yb:CsPb(Cl,Br)3 nanocrystals. However, these results remain difficult to reproduce, and the microscopic processes responsible for photon multiplication are still debated.
State of the art: PLQY measures the average number of emitted photons per absorbed photon but does not establish whether two photons originate from the same absorption event. QC should instead produce temporally correlated photon pairs from Yb emission, leading to photon bunching, a peak in the second-order correlation function g(2)(𝜏), whereas conventional one-to-one downshifting ideally produces Poissonian photon statistics. Correlation measurements therefore provide an orthogonal observable to PLQY.
Project: The student will establish and validate a near-infrared photon-correlation experiment. Hyperspectral PLQY imaging will provide spatially and spectrally resolved absolute PLQY maps. Joint interpretations will assess whether the observed Yb emission arises from photon multiplication or conventional one-to-one sensitisation.
Contact
Zhuoying CHEN
11/10/2026
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Thesis :
Funding :
24
Mutlimode control and fundamental limits in ultra-sensitive optomechanical measurement.
Domaines
Quantum optics/Atomic physics/Laser
Quantum information theory and quantum technologies
Quantum optics
Type of internship
Expérimental Description
Optomechanics investigates the interactions between mechanical and electromagnetic degrees of freedom. Over the past 3 decades, this approach has imposed as paradigmatic for the experimental study of fundamental processes in motion continuous measurement, and preparing non-classical motional states of macroscopic mechanical bodies. Currently, the main hurdle for pushing deep in the quantum regime essentially stems from decoherence due to an infinite cohort of optical and mechanical modes, which 'leak' noises into the optomechanical mode of interest.
The overall context of this experimental internship is to address this fundamental issue. The idea is to deploy a novel approach, based on the measurement of the full matrix capturing the optomechanically-induced interactions between all mechanical and optical modes. Using information theory, we expect to gain full control over the multimode properties of the optomechanical system, and in particular to deeply suppress off-resonant coupling contributions by, that is the main contribution to decoherence, by tuning the illumination using wavefront shaping. The project will be based on early results already obtained in our group and will be conducted in the frame of an ANR collaboration.
Contact
Pierre Verlot
10/10/2026
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Thesis :
Funding :
25
Atom-Tweezer Arrays in an Optical Microcavity for Quantum Technologies
Domaines
Quantum optics/Atomic physics/Laser
Quantum optics
Quantum gases
Metrology
Type of internship
Expérimental et théorique Description
This project explores a new experimental platform combining single-atom control with cavity-mediated long-range interactions. At LKB, we have recently demonstrated arrays of individually trapped atoms strongly coupled to a high-finesse optical microcavity, with single-atom-resolved detection. The experiment now opens exciting perspectives for quantum simulation of spin transport under tunable disorder and dissipation, as well as for quantum-enhanced metrology. Depending on the progress of the experiment, the internship will focus on experimental developments such as optical beam shaping or laser stabilization. The student will gain hands-on experience in optics, lasers, cold atoms and cavity QED, with the possibility of continuing toward a PhD exploring these new research directions.
Contact
Romain Long
09/10/2026
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Thesis :
Funding :
26
Coherent and incoherent spin manipulations in a degenerate Fermi gas
Domaines
Quantum optics/Atomic physics/Laser
Nouveaux états électroniques de la matière corrélée
Quantum information theory and quantum technologies
Quantum gases
Metrology
Type of internship
Expérimental Description
Ultracold atoms offer a platform to explore quantum collective effects. We perform experiments with degenerate Fermi gases of strontium 87 atoms – an exotic fermionic system, with a spin-9/2 degree of freedom. This is both an opportunity to explore novel many-body effects (for example, magnetic phenomena), and a “technological” opportunity to use quantum objects with a large internal Hilbert space, as a resource for quantum simulation, computation, or sensing.
We have developed original methods to manipulate and measure the atomic spins, that rely on the narrow forbidden lines of atomic strontium. We want now to demonstrate the production of quantum correlated states, by engineering either Hamiltonian or dissipative terms acting on the atoms, and explore the way towards their use in other quantum technologies (e.g., optical clocks). The dissipative control, in particular, illustrate the groundbreaking idea that couplings to an environment, typically destroying the manifestations of quantum physics, will in specific cases actually produce and stabilize quantum states with many-body correlations.
This work will be realized on an ultracold atom platform in operating conditions. The master’s internship will consist in developing a laser system enabling independent coherent and incoherent spin manipulations. It will be an opportunity to discover the quantum gas platform as a whole, possibly as a preparatory step for longer-term integration in the team.
Contact
Martin Robert de Saint Vincent
09/10/2026
/
Thesis :
Funding :
27
Probing quantum coherence in artificial atoms with relativistic electrons
Domaines
Quantum optics/Atomic physics/Laser
Condensed matter
Quantum information theory and quantum technologies
Quantum optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
Can a fast electron probe the quantum coherence of an artificial atom? Quantum coherence is central to quantum physics and underpins quantum information processing. Measuring it in individual systems such as quantum dots with nanometer spatial resolution would open new possibilities for exploring light–matter interactions and developing approaches to quantum-state readout.
We now seek to cross a new frontier in quantum science and technology: accessing the quantum coherence of an individual artificial atom with a relativistic electron. The central question is whether, and how, this coherence can be encoded in the electron’s state and experimentally read out.
This M2 internship, with the prospect of continuing into a PhD, will contribute to this effort within the ERC Advanced Grant FreeQCC. The project combines a state-of-the-art monochromated transmission electron microscope, a laser system, and engineered samples designed to enhance electron–light–matter interactions. During the internship, the student will help develop the optical setup, participate in experiments, and analyze the resulting data.
We seek a curious and motivated student interested in quantum physics, nano-optics, and experimental research. The project offers the opportunity to explore an emerging research frontier with implications for both fundamental physics and future quantum technologies, through a combination of advanced instrumentation, experiments, and theory.
Contact
Mathieu Kociak
07/10/2026
/
Thesis :
Funding :
28
Variational Phase-Space Methods for Quantum and Complex Dynamics
Domaines
Quantum optics/Atomic physics/Laser
Condensed matter
Statistical physics
Nouveaux états électroniques de la matière corrélée
Quantum Machines
Nonequilibrium statistical physics
Quantum information theory and quantum technologies
Quantum optics
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Non-equilibrium Statistical Physics
Hydrodynamics/Turbulence/Fluid mechanics
Type of internship
Théorique, numérique Description
This theoretical physics internship will explore new variational phase-space methods for understanding quantum and complex dynamics beyond the reach of exact numerical simulations.
The starting point is our recent work published in Physical Review X (2026), which combines multi-Gaussian representations of the Wigner distribution, variational principles and automatic differentiation. The Wigner distribution represents quantum states in phase space, capturing correlations and quantum interference. Our approach turns their dynamics into the evolution of a compact set of parameters, opening new possibilities for studying large interacting systems.
The project will investigate how these ideas can be extended and applied across a broad range of problems: open and driven quantum systems, quantum many-body dynamics, nonlinear light-matter interactions, and potentially nonlinear, stochastic and classical complex systems.
The research direction will be adapted to the student's interests, combining analytical developments with numerical simulations.
Supervisor: Prof. Cristiano Ciuti, MPQ, Université Paris Cité / CNRS.
Contact: cristiano.ciuti@u-pariscite.fr
Contact
Cristiano Ciuti
07/10/2026
/
Thesis :
Funding :
29
Magneto-Ionic Nanodevices for Neuromorphic Computing
Domaines
Condensed matter
Low dimension physics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
Scientific project: Controlling magnetic properties through voltage-driven ionic motion opens exciting opportunities for next-generation spintronic technologies, including reconfigurable multistate memories and neuromorphic hardware. By combining ionic and magnetic degrees of freedom, magneto-ionic nanodevices offer new ways to emulate the adaptive behavior of biological synapses. Our group at C2N has demonstrated large, reversible, and non-volatile voltage-induced changes in the magnetic properties of spintronic nanodevices, as well as their potential to realize bioinspired synaptic functionalities.
We are seeking a highly motivated master’s student to join our team for an experimental research project at the interface of magnetism, ionics, and neuromorphic computing. The project will investigate how magneto-ionic gating can control the dynamics of magnetic domain walls driven by current pulses in nanodevices. By exploring the interplay between ionics and spintronics, the student will develop and characterize new device functionalities for artificial synapses. The ultimate ambition is to combine an ensemble of devices to evaluate its performance for given learning tasks.
The student will benefit from our team’s complementary expertise in magneto-ionics, neuromorphic computing architectures, and nanofabrication, while gaining hands-on experience in state of the art experimental research.
Contact
Liza Herrera Diez
07/10/2026
/
Thesis :
Funding :
30
Probing the cosmic dawn with a quantum correlator
Domaines
Condensed matter
Quantum Machines
Quantum information theory and quantum technologies
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Type of internship
Expérimental et théorique Description
The constant pace of discoveries of new radio sources in the Universe calls for new receivers
which would be faster, more sensitive and less subject to parasitic signals. An outstanding
problem which could benefit from new detection schemes is, for example, the accurate measurement of the 21-cm, strongly red-shifted, cosmological signal, in the low 100 MHz range. Many pioneering experiments have been carried out, such as EDGES, REACH, NENUFAR or SARAS, but the cosmological signal has been elusive so far.
The main idea to be developed in this project is to use quantum technologies, and in particular multicavity setups with granular aluminum Josephson circuits in order to develop a quantum correlator which could unlock very feeble cosmological signals connected to deep questions about the early universe or fast bursts entailing ununderstood astrophysical processes. We have recently shown that we could have a clear advantage of a cavity quantum electrodynamics setup over a classical receiver chain for the very low redshifted 21-cm signal from benchmark constellations such as the Cygnus or Cassiopea. We would like to test the same ideas on a quantum correlator first on pulsars or galactic masers as a benchmark before going to the very high redshifted signals.
Contact
Takis Kontos
06/10/2026
/
Thesis :
Funding :
31
Quantum simulation with a hybrid Rydberg atom platform
Domaines
Quantum optics/Atomic physics/Laser
Quantum information theory and quantum technologies
Type of internship
Expérimental Description
The long lifetimes and strong dipole-dipole interactions of circular Rydberg atoms make them particularly appealing for the realization of quantum simulations. A recently-developed hybrid platform, that combines them with ancillary atoms excited to standard Rydberg levels, has enabled their local non-destructive measurement and manipulation, and the simulation of spin-exchange interactions over unprecedented timescales. The intern will participate in the development of a novel cryogenic version of the platform, where we will fully benefit from the long lifetimes of circular states. We will use the new setup to demonstrate quantum simulations in a subsequent doctoral work.
Contact
Clément Sayrin
05/10/2026
/
Thesis :
Funding :
32
Quasi-1D Fermi gases
Domaines
Quantum gases
Type of internship
Expérimental et théorique Description
This activities of the group focus on the study of strongly correlated fermions in low-dimension. We explore how the interplay between strong confinement and strong interactions allowed by Feshbach resonances gives rise to Effective field theories generalized known paradigms in low dimension.
Contact
Frédéric Chevy
05/10/2026
/
Thesis :
Funding :
33
Probing the Fermi surface in a lattice with metastable helium atoms
Domaines
Quantum optics/Atomic physics/Laser
Quantum gases
Type of internship
Expérimental Description
The helium lattice team exploits the properties of helium species to probe lattice gases atom-by-atom [1]. The apparatus, initially operated with the bosonic species helium-4 [2], led to study the Bogoliubov pairing through atom correlations [3,4], and to probe the superfluid-Mott transition through full counting statistics [5,6]. The detection method also applies to the fermionic species helium-3. Therefore, we have recently upgraded the apparatus to add helium-3 and produce a degenerate Fermi gas. In a near future, we will load the fermionic gas into lattices to perform studies of lattice fermions.
The Master 2 internship will aim at characterizing the Fermi surface of non-interacting lattice fermions, leading to a PhD thesis centered on interacting lattice fermions (e.g. Fermi-Hubbard physics) and momentum correlations. The intern will join on-going efforts of the experimental team to achieve (i) loading helium-3 gas into the optical lattices, (ii) acquiring the experimental data, varying experimental parameters such as temperature or lattice filling, and (iii) analyzing the single-atom-resolved distributions to characterize the Fermi surface.
[1] Phys. Rev. A 97, 061609 (2018); Phys. Rev. X Quantum 5, 040324 (2024).
[2] Phys. Rev. Lett. 126, 045301 (2021).
[3] Nature Physics 17, 1364 (2021).
[4] Nature Physics 21, 57-62 (2025).
[5] Nature 655, 1148 (2026).
[6] arXiv:2609.03433 (2026).
Contact
David CLEMENT
05/10/2026
/
Thesis :
Funding :
34
Rare-Earth based quantum memory
Domaines
Condensed matter
Quantum information theory and quantum technologies
Type of internship
Expérimental et théorique Description
The internship project takes place at the ENS Lyon Physics Laboratory. It offers the chance to build a random-access quantum memory, a device that stores several quantum states and releases any one of them on demand, a key ingredient for parallel quantum processing. Electron spin ensembles store microwave states about 100 times longer than superconducting qubits but are limited to below 10% efficiency, a challenge the project tackles using ytterbium ions in CaWO₄, which keep state-of-the-art coherence at high concentration and operate at zero magnetic field. The milestones are to test a new deposition technique that boosts spin–resonator coupling, then demonstrate storage of classical and quantum microwave fields at an efficiency close to 100%.
Contact
Audrey Bienfait
Laboratory : laboratoire de physique, ENS de Lyon - umr 5672
Team : ENS de Lyon, Physique
Team Website
Team : ENS de Lyon, Physique
Team Website
02/10/2026
/
Thesis :
Funding :
35
Bose-Einstein Condensates with tunable interactions
Domaines
Quantum gases
Type of internship
Expérimental Contact
Thomas Bourdel
02/10/2026
/
Thesis :
Funding :
36
Small-scale chaos and the Vlasov limit of N-body dynamics
Domaines
Statistical physics
Nonequilibrium statistical physics
Non-equilibrium Statistical Physics
Kinetic theory ; Diffusion ; Long-range interacting systems
Type of internship
Théorique, numérique Description
This internship focuses on the role of small-scale chaos in the convergence of the Klimontovich
equation towards the Vlasov one. See attached PDF for the full proposal.
Contact
Jean-Baptiste Fouvry
01/10/2026
/
Thesis :
Funding :
37
Hybrid and non-Gaussian optical quantum state engineering
Domaines
Quantum optics/Atomic physics/Laser
Quantum information theory and quantum technologies
Quantum optics
Non-linear optics
Type of internship
Expérimental et théorique Description
The use of light in quantum information processing and networks has historically been split between two communities. On one side is the continuous-variable (CV) approach, which treats optical fields as waves. On the other side is the discrete-variable (DV) approach, harnessing the properties of individual photons. By considering a hybrid approach bridging the two, one could envision quantum architectures where the two encodings can be for instance interchanged fittingly to the task at hand.
In this hybrid quantum optics context, the LKB team demonstrated the first engineering of hybrid entanglement of light, i.e. entanglement between particle- and wave-like optical qubits. This novel resource enabled then to demonstrate the remote state preparation of cat-state qubits and recently the teleportation between different encodings, realizing thereby a first quantum-bit encoding converter.
The research of the group is now focusing into two directions. The first one aims at harnessing further the unique benefits of the hybrid optical approach for quantum connections, to develop optical quantum connections versatile enough to connect different physical quantum platforms and faithfully carry a broad range of quantum states. The second direction builds on the high-fidelity non-gaussian resources available on the experimental setup and aims at the realization of complex optical non-gaussian states that can find applications in bosonic error correcting codes.
Contact
Alban Urvoy
01/10/2026
/
Thesis :
Funding :
38
Waveguide-QED - combining cold atoms and nanophotonics (2 internships)
Domaines
Quantum optics/Atomic physics/Laser
Quantum information theory and quantum technologies
Quantum optics
Type of internship
Expérimental et théorique Description
Controlling light-matter interaction at the single-quantum level is a long-standing goal in optical physics, with applications to quantum optics and quantum information science. However, single photons usually do not interact with each other and the interaction needs to be mediated by an atomic system. Enhancing this coupling has been the driving force for a large community over the past two decades.
In contrast to the cavity-QED approach where the interaction is enhanced by a cavity around the atoms, strong transverse confinement in single-pass nanoscale waveguides recently triggered various investigations for coupling guided light and cold atoms. Specifically, a subwavelength waveguide can provide a large evanescent field that can interact with atoms trapped in the vicinity. An atom close to the surface can absorb a fraction of the guided light as the effective mode area is comparable with the atom cross-section. This emerging field known as waveguide-QED promises unique applications to quantum networks, quantum non-linear optics and quantum simulation. Recently, the LKB team pushed the field for the first time into the quantum regime by creating an entangled state of an array of atoms coupled to such a waveguide. Two experiments are dedicated to this waveguide-QED effort and internships/PhD projects are proposed on both of them.
Contact
Alban Urvoy
01/10/2026
/
Thesis :
Funding :
39
Chiral Majorana modes in graphene and TMD multilayers
Domaines
Condensed matter
Low dimension physics
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Théorique, numérique Description
In this internship, motivated by recent experiments on graphene and TMD multilayers, we will theoretically investigate 2D multilayers that could host chiral Majorana modes. We will also study the creation of Majorana wave packets and their time-dependent propagation and manipulation.
Contact
Dganit MEIDAN
01/10/2026
/
Thesis :
Funding :
40
Steering quantum states through measurements and feedback
Domaines
Condensed matter
Quantum Machines
Quantum information theory and quantum technologies
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Non-equilibrium Statistical Physics
Type of internship
Théorique, numérique Description
The objective of this research project is to investigate the interplay between partial postselection and conditional feedback in monitored many-body quantum systems. To explore these effects, we will consider a many-body system of non-interacting electrons undergoing entangling unitary evolution interrupted by disentangling quantum measurements. We will study how the resulting dynamics are modified by local particle injection and depletion, as well as by local and non-local feedback protocols and adaptive partial postselection.
Contact
Dganit MEIDAN
01/10/2026
/
Thesis :
Funding :
41
Time resolved scanning tunnelling microscopy
Domaines
Condensed matter
Nouveaux états électroniques de la matière corrélée
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
Quantum matter, such as high temperature superconductivity, is generally emergent, meaning that the physics cannot be understood by the sum of the individual components. The crucial additional ingredient is the interactions between the atoms (or lattice), electrons and spins. To directly study these interactions, we are currently developing a time-resolved scanning tunnelling microscope. This instrument will provide direct access to the surface atoms and the local electronic structure, while at the same time enabling read-out and/or excitation at GHz frequencies (i.e. nanosecond timescales).
During this internship, you will be the first to test and use this new instrument. Initially, measurements will be performed at room temperature to make sure that the microscope works correctly. Then, exploration at low temperature and high frequency will follow, with the aim of uncovering previously inaccessible information about the workings of quantum matter.
Contact
Freek Massee
30/09/2026
/
Thesis :
Funding :
42
Strong light-matter interactions with intra-cavity Rydberg superatoms
Domaines
Quantum optics/Atomic physics/Laser
Quantum information theory and quantum technologies
Quantum optics
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Type of internship
Expérimental et théorique Description
Optical photons are excellent carriers of quantum information, but their lack of mutual interactions is a major roadblock for quantum technologies. Our setup enables such interactions by transiently injecting the photons into an intra-cavity cold atomic gas and converting them into strongly interacting Rydberg polaritons. The Rydberg-blockaded cloud then acts as an effective two-level superatom with an enhanced coupling to light. We can coherently manipulate its state, efficiently detect it, and observe state-dependent pi phase flips on the light reflected from the cavity as required for many quantum engineering tasks. We obtained the first fully deterministically-generated free-propagating states of light with negative Wigner functions. We also developed a deep theoretical understanding of the rich physics and the abilities of the superatoms, validated by experimental results.
This platform opens many perspectives for developing deterministic multi-photon gates, performing quantum measurements impossible with current techniques, generating non-classical free-propagating resource states, and studying strongly correlated quantum fluids of light.
Contact
Sébastien Garcia
30/09/2026
/
Thesis :
Funding :
43
Magnetic resonance of single biomolecules with quantum superconducting circuits
Domaines
Biophysics
Quantum Machines
Quantum information theory and quantum technologies
Quantum optics
Type of internship
Expérimental Description
Superconducting qubits, developed for quantum computing, can also serve as sensitive detectors for probing the magnetic properties of individual molecules. The Quantronics group has demonstrated the detection of individual electron spins in crystals by counting the microwave photons they emit with a transmon qubit [1], as well as the coherent control of neighbouring nuclear spins [2]. This internship will contribute to our ongoing work on molecular spins in frozen solution, with the aim of performing magnetic resonance spectroscopy on individual spin-labelled biomolecules.
Electron spin resonance (ESR) provides information about the local electronic and magnetic environment of molecules. In structural biology, interactions between spin labels can also be used to measure distances within proteins. Conventional experiments average over many molecules, obscuring their individual properties and limiting spectroscopic resolution. Measuring molecules individually could overcome this ensemble broadening and reveal local environments and spin couplings that are otherwise unresolved, opening access to more detailed structural information.
Contact
Emmanuel Flurin
30/09/2026
/
Thesis :
Funding :
44
A new source at 578 nm for clock interrogation and shelving of Yb atoms
Domaines
Quantum optics/Atomic physics/Laser
Quantum optics
Non-linear optics
Quantum gases
Metrology
Type of internship
Expérimental Description
The internship will take place in the ytterbium lattice clocks team at LTE, Observatoire de Paris. Two topics are proposed in parallel: the design and the construction of a 578 nm source based on non-linear optics, and the demonstration of an atomic drain technique aiming at shelving atoms in metastable states so as to decouple the dynamics of a magneto-optical trap from the capture in a deep optical lattice.
Contact
Rodolphe Le Targat
28/09/2026
/
Thesis :
Funding :
45
Bio-inspired superconducting sensors for sub-THz technologies
Domaines
Condensed matter
Physics of living systems
Quantum information theory and quantum technologies
Non-linear optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental et théorique Description
The overall objective is to develop an ultrasensitive, on-chip sub-THz spectrometer that mimics the cochlea’s remarkable ability to decompose complex audio signals. This will be achieved by combining graded metamaterial designs with the nonlinear dynamics of superconductors.
The internship will consist in setting up a 100GHz measurement apparatus and simulating, then fabricating a first prototype to verify the properties of the rainbow trapping in the linear case.
Do not hesitate to contact us, if you are interested !
Contact
Alexis Jouan
28/09/2026
/
Thesis :
Funding :
46
Local THz photons for coherent light-matter interaction
Domaines
Condensed matter
Low dimension physics
Nouveaux états électroniques de la matière corrélée
Quantum information theory and quantum technologies
Quantum optics
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental et théorique Description
The goal of this project is to build a quantum spectrometer in the meV range that opens the road for the study of quantum coherences in low dimensional systems. It lies at the frontier between microwave and optics will enrich two fields of research and give access to mesoscopic phenomena such as magnonic excitations.
Feel free to contact me if you are interested!
Contact
Alexis Jouan
28/09/2026
/
Thesis :
Funding :
47
Can biodiversity be seen from space? Multiscale complexity in remote-sensing images to predict ecosystem trends.
Domaines
Statistical physics
Biophysics
Physics of living systems
Type of internship
Théorique, numérique Description
A biodiverse landscape may not simply be greener or more heterogeneous. It may possess a distinctive organisation across scales: habitat mosaics, edges, corridors, characteristic patch sizes, lacunarity and long-range correlations. Aerial and satellite images preserve much of this geometry, yet standard ecological products often compress it into pixel classes or a few averages. The challenge is to determine whether multiscale observables carry robust ecological information and, as a possible extension, whether they reveal spatial reorganisation before visible degradation.
Contact
Michael Benzaquen
27/09/2026
/
Thesis :
Funding :
48
{Mapping atmospheric convection from paragliding trajectories
Domaines
Statistical physics
Physics of living systems
Hydrodynamics/Turbulence/Fluid mechanics
Type of internship
Théorique, numérique Description
Can thousands of recreational flights become an observatory of atmospheric convection? This internship will use large-scale paragliding trajectories to investigate the structure and dynamics of thermal updrafts. Combining atmospheric physics, trajectory analysis and statistical inference, we will explore what nearby pilots can reveal collectively about an invisible, evolving flow, while accounting for the selective way they explore it.
Contact
Michael Benzaquen
27/09/2026
/
Thesis :
Funding :
49
2D materials architectures for advanced tuning of thermal properties
Domaines
Condensed matter
Low dimension physics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
The internship explores heat and charge transport in nanostructured graphene to improve thermoelectric conversion and explore thermal rectification. Using geometrically modified graphene with periodic nano-holes or nanocostriction, it aims to control phonon and electron mean free paths, enabling asymmetric heat conduction and enhanced Seebeck effect. The student will fabricate devices (graphene transfer, e-beam lithography, etching), measure electrical and thermal properties (Seebeck coefficient, electrical and thermal conductivity, rectification), and analyze results through finite element simulations. The project offers practical training in 2D materials and advances understanding of geometry-driven thermal and thermoelectric control.
Contact
Maria Luisa Della Rocca
25/09/2026
/
Thesis :
Funding :
50
Molecular membrane fabrication for quantum technologies
Domaines
Quantum optics/Atomic physics/Laser
Condensed matter
Low dimension physics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
The central objective of this internship is to establish a reproducible route for fabricating europium
molecular membranes and, crucially, to determine whether their exceptional optical properties are
preserved after exfoliation and transfer. The student will optimize the mechanical exfoliation
conditions to increase the yield of thin, large-area flakes; develop deterministic dry-transfer protocols
onto photonic substrates such as SiC, SiO2/Si and glass; characterize membrane thickness,
morphology and crystalline quality using optical interference microscopy, atomic force microscopy
and Raman spectroscopy; and investigate their luminescence and optical homogeneous linewidths at
cryogenic temperatures using spectral hole burning. Comparison with bulk crystals will allow the
influence of exfoliation, reduced thickness and substrate coupling on the optical coherence of the
molecular material to be established.
Contact
Diana SERRANO
25/09/2026
/
Thesis :
Funding :
51
Single-Photon Detection and Correlation Measurements in Ultracold Atoms
Domaines
Quantum optics/Atomic physics/Laser
Quantum information theory and quantum technologies
Quantum optics
Quantum gases
Type of internship
Expérimental Description
The Exotic Quantum Matter (EQM) Group is looking for a highly motivated Master 2 student to characterize a single-photon detection system that will subsequently be integrated into the experimental platform. The EQM group operates a quantum simulator based on ultracold potassium atoms to study strongly interacting quantum matter and light–matter interactions.
The EQM team has already demonstrated strong photon–photon interactions through classical measurements of optical intensity and phase. The next step is to investigate these interactions at the level of individual photons, where quantum correlations become directly accessible.
The internship will establish a two-channel single-photon detection system based on two single-photon avalanche diodes (SPADs) and a high-resolution photon arrival-time tagger. The system will be used to measure the second-order photon correlation function g²(τ).
Contact
Tom Bienaimé
25/09/2026
/
Thesis :
Funding :
52
Gravimètre à atomes froids aéroporté
Domaines
Quantum optics/Atomic physics/Laser
Quantum information theory and quantum technologies
Metrology
Type of internship
Expérimental Description
Le stage proposé consistera à participer au premier essai aéroporté d'un gravimètre quantique de seconde génération, plus compacts, plus précis et permettant non seulement de mesurer l’amplitude du champ de gravité, mais également d’en déterminer l’orientation . Dans un premier temps, le stagiaire mettra en place une procédure de calibration des capteurs auxiliaires nécessaires au fonctionnement du gravimètre. Dans un deuxième temps, il participera à une campagne de mesures en vol aux îles Féroé. Enfin, il contribuera au traitement et à l’analyse des données acquises pendant les vols. Ce stage permettra au stagiaire d’acquérir des compétences à l’interface de plusieurs domaines : physique quantique, métrologie de haute précision, instrumentation et traitement de données. Le stage pourra se poursuivre par une thèse portant sur la suite du développement de ce gravimètre quantique, avec pour objectif la réalisation de mesures vectorielles du champ de gravité.
Contact
Sylvain Schwartz
24/09/2026
/
Thesis :
Funding :
53
Métrologie quantique avec des atomes de Rydberg dans des pinces optiques
Domaines
Quantum optics/Atomic physics/Laser
Quantum information theory and quantum technologies
Metrology
Type of internship
Expérimental Description
Ce stage s'inscrit dans un projet visant à explorer une nouvelle génération de capteurs de champs électromagnétiques avec des atomes froids de Rydberg. L'idée est de combiner la grande sensibilité des atomes de Rydberg au très bon degré de contrôle et de cohérence qu'il est possible d'atteindre avec des atomes froids contrôlés dans des pinces optiques. Cela ouvre la voie à de nouvelles applications dans des domaines variés comme : l’imagerie THz, la détection électromagnétique, la calibration des déplacements lumineux dans les horloges atomiques et des expériences de métrologie quantique où l'intrication entre atomes est mise à profit pour améliorer la sensibilité des mesures.
Notre dispositif expérimental a permis la démonstration de méthodes innovantes pour la mesure d’un champ micro-onde avec des atomes froids de Rydberg [Phys. Rev. Applied 22, 044039 ; arXiv:2608.07260]. L'objectif de ce stage est d’explorer de nouvelles techniques de mesure des champs électromagnétiques avec des atomes froids de Rydberg dans des pinces optiques.
Intégré au sein de l'unité DPHY/SLM de l'ONERA, qui est un acteur mondialement reconnu des capteurs à base d'atomes froids, vous serez également amené(e) à interagir avec le département électromagnétisme et radar de l'ONERA ainsi qu'avec nos partenaires académiques et industriels
Contact
Sylvain Schwartz
24/09/2026
/
Thesis :
Funding :
54
Looking for potential variations of the proton-to-electron mass ratio and other tests of fundamental physics via precision measurements with molecules
Domaines
Quantum optics/Atomic physics/Laser
Metrology
Type of internship
Expérimental Description
This internship will focus on measuring mid-infrared molecular transitions of methanol (CH3OH), ammonia (NH3), and other molecules known for their enhanced sensitivity to changes in µ. The work will involve achieving subDoppler spectroscopic resolution to reach target laboratory frequency accuracies of ~100 Hz needed for comparisons with astronomical observations. This activity is part of the ANR Ultiµos project, a collaborative effort which seeks to refine current constraints on the possible variation of µ which involves leading research institutions, including Laboratoire Kastler Brossel (LKB, L. Hilico) and MONARIS (C. Janssen) at Sorbonne Université. The three partners of the Ultiµos consortium will collaborate to conduct measurements in different spectral windows, to identify transitions as targets for future Earth/space comparison campaigns, which could further tighten constraints on
variations of µ. Other collaborators, such as Vrije Universiteit Amsterdam and Onsala Space Observatory, will provide theoretical and observational/astronomical support to complement the experimental efforts.
Contact
Raphaël Hahn
23/09/2026
/
Thesis :
Funding :
55
High-Sensitivity Microwave Spectroscopy for Precision Measurements and Tests of Fundamental Physics
Domaines
Quantum optics/Atomic physics/Laser
Metrology
Type of internship
Expérimental Description
The master student will join the effort at LPL to develop a new-generation compact and versatile microwave (MW) spectrometer operating over the 2–20 GHz range. This instrument is conceived both as a high-sensitivity detector of internal quantum states in polyatomic molecules and as a precision tool for molecular frequency metrology. The spectrometer will enable cross-checks between MW rotational frequencies and mid-infrared (MIR) rovibrational data planned to be measured at the 100 Hz level in the frame of the ANR Ultiµos project. These comparisons are directly motivated by the search for potential variations of the proton-to-electron mass ratio µ, a fundamental constant whose stability can be tested by confronting laboratory data with MW astronomical spectra of molecules such as methanol and ammonia. These species possess transitions with strong sensitivity coefficients to µ, making them powerful probes of possible temporal or spatial variations of fundamental constants. In Ultiµos, spectroscopy with ultrastable MIR quantum cascade lasers provide ultra-precise MIR frequencies with relative uncertainties of 10 ¹². By using combination–difference schemes, these MIR data yield effective MW intervals that can be directly confronted with our SI-traceable MW measurements. Such dual determinations, based on entirely different experimental chains and affected by distinct systematic effects, are ideal for robust cross-validation of frequency values and uncertainty budgets.
Contact
Raphaël Hahn
23/09/2026
/
Thesis :
Funding :
56
Exploring non-Abelian geometric phases with mobile spins
Domaines
Condensed matter
Quantum information theory and quantum technologies
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
This project aims to perform direct measurements of non-Abelian geometric phases experienced by individual spins moving in materials with strong spin-orbit interaction. We will develop an experiment where single holes are displaced along closed loops inside 2D arrays of quantum dots in germanium at zero magnetic field. By studying the evolution of their spin states depending on the trajectory followed, we will evidence the non-Abelian geometric phases, study their properties and investigate their potential for quantum information processing.
Contact
Corentin Déprez
22/09/2026
/
Thesis :
Funding :
57
Toward 2D electron gases with strong spin-orbit coupling in crystalline metal- semiconductor heterostructures
Domaines
Condensed matter
Type of internship
Expérimental Description
The aim of this intership project and the following PhD thesis is to develop a strategy to preserve the strong Rashba effect in 2D heavy metallic layers on semiconducting surfaces and make use of these systems for spintronic applications. We will grow a dielectric capping material on the desired heavy metal in ultra-high vacuum environement, study the band structure of the heterostructures by ARPES and perform charge-spin conversion measurements by magneto-transport techniques.
Contact
Sergio Vlaic
21/09/2026
/
Thesis :
Funding :
58
The statistical physics of visual preference: What makes an image appealing?
Domaines
Statistical physics
Physics of living systems
Type of internship
Théorique, numérique Description
Why do some images feel visually compelling while others appear dull, chaotic or artificial? This internship will investigate whether aesthetic preference can be related to measurable statistical properties of images. Building on our previous work on structural complexity, multiscale relevance, and quantitative color harmony, we will combine large human-preference datasets with interpretable descriptors of image organisation to identify which visual structures are consistently associated with appeal.
Contact
Michael Benzaquen
21/09/2026
/
Thesis :
Funding :
59
Cooperation in hybrid human-AI populations: Can artificial agents reshape collective behaviour?
Domaines
Statistical physics
Physics of living systems
Non-equilibrium Statistical Physics
Type of internship
Théorique, numérique Description
As artificial agents become participants in social and economic interactions, even a small fraction of them may alter collective behaviour. This internship will investigate how cooperation emerges in populations containing both humans and artificial agents. Using empirical data from social-dilemma experiments together with simple statistical-physics and evolutionary-game models, we will ask when artificial agents stabilise cooperation, when they disrupt it, and which mechanisms control the transition between these regimes.
Contact
Michael Benzaquen
21/09/2026
/
Thesis :
Funding :
60
Quantum simulation of anyons
Domaines
Condensed matter
Low dimension physics
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Quantum gases
Type of internship
Expérimental Description
We propose an internship to implement quantum simulation scenarios with ultra-cold dipolar excitons, confined in nanoscopic electrostatic lattices. This semiconductor platform has shown a high level of performance. It relies on electron-hole pairs that are optically injected in a double quantum well, where gate electrodes imprint electrostatic lattices confining excitons. Here, a route is introduced to realize anyonic excitations in the lattice. Anyons are strikingly marked by a fractional quantum statistics. They are theoretically accessible to dynamically varying lattices of dipolar excitons. following so-called Floquet engineering.
Contact
Francois Dubin
21/09/2026
/
Thesis :
Funding :
61
Cat qubits based on dc-biased Josephson junctions
Domaines
Condensed matter
Quantum Machines
Quantum information theory and quantum technologies
Type of internship
Expérimental et théorique Description
Cat qubits protect quantum information in hardware. Two coherent states of a microwave resonator are held in place by a dissipation that removes photons only in pairs, which suppresses bit flips exponentially with the cat size. This dissipation is usually activated by a microwave pump, which also turns on parasitic terms. We instead bias a Josephson junction with a dc voltage, so that Cooper pairs tunnel at a frequency selecting the useful process while every unwanted term averages to zero. We have just demonstrated this mechanism in Lyon with Alice & Bob. The internship consists in measuring the next circuit and turning this dissipation into a qubit, first a two-component cat imaged by Wigner tomography, then a four-component cat calling for a high-impedance memory.
Contact
Benjamin Huard
Laboratory : laboratoire de physique, ENS de Lyon - umr 5672
Team : ENS de Lyon, Physique
Team Website
Team : ENS de Lyon, Physique
Team Website
18/09/2026
/
Thesis :
Funding :
62
A superconducting qubit with built-in protection against errors
Domaines
Condensed matter
Quantum Machines
Quantum information theory and quantum technologies
Type of internship
Expérimental et théorique Description
Quantum processors correct their errors in software, at a cost of roughly a thousand physical qubits per useful logical one. A protected qubit works differently. Its two logical states are placed so far apart in phase space that no local noise can connect them. Errors are suppressed by the geometry of the circuit rather than corrected after the fact. We identified a new circuit that should solve the current roadblocks of previous attempts at making such a device. During the internship, you will measure and characterize the first version of that circuit.
Moreover, we recently experimentally demonstrated that it is possible to remove any charge offset drift in superconducting circuits, which would greatly improve the coherence time of our qubit. You will also contribute to the development of a new fabrication recipe that stabilizes the charge offset deterministically.
Contact
Benjamin Huard
Laboratory : laboratoire de physique, ENS de Lyon - umr 5672
Team : ENS de Lyon, Physique
Team Website
Team : ENS de Lyon, Physique
Team Website
18/09/2026
/
Thesis :
Funding :
63
Probing Short-Time Brownian Motion in 3D with Optical Traps
Domaines
Condensed matter
Statistical physics
Soft matter
Physics of liquids
Nonequilibrium statistical physics
Non-equilibrium Statistical Physics
Hydrodynamics/Turbulence/Fluid mechanics
Type of internship
Expérimental Description
Push our optical trap toward a full 3D view of Brownian motion. Having proven we can track x(t) and y(t) under white light, cross-calibrated with our ultra-fast photodiode x(t) channel, join us to add a fast y(t) channel and a brand-new z(t) axis, the first steps toward a PhD probing particles near walls.
Contact
Julien BURGIN
17/09/2026
/
Thesis :
Funding :
64
Fractionalisation and anyons in integer quantum Hall circuits
Domaines
Condensed matter
Low dimension physics
Nouveaux états électroniques de la matière corrélée
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental et théorique Description
In reduced dimensionality, particles coined “anyons” can evade the familiar division between fermions and bosons with a fractional exchange phase between 0 and pi, with applications to topological quantum computation. Early on, quasiparticles of the Fractional Quantum Hall regime were identified as anyon candidates, and their fractional statistics was experimentally established in a few pioneer experiments in the early 2020s. It has been suggested that their existence extends way beyond this restrictive framework, and that they emerge for instance in bidimensional ballistic electron systems with strong Coulomb interactions, resulting in electron charge and statistics fractionalization.
The goal of this internship is to follow this novel approach with quantum circuit tools, combining quantum point contacts, single electron physics at high charging energies and ballistic edge channels of the Integer quantum Hall regime. The student will learn a variety of techniques mastered in the team (ultrasensitive conductance and quantum shot noise measurements, quantum thermal transport, electron interferometry), in order to reveal the anyonic nature of the system’s excitations, and characterize their quantum coherence.
Contact
Olivier Maillet
17/09/2026
/
Thesis :
Funding :
65
Infrared electroluminescence from colloidal quantum dots
Domaines
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
Colloidal Quantum Dots (CQDs) are size-tunable semiconductors. They received the Nobel Prize in 2023 after being integrated into displays thanks to their spectrally narrow luminescence. While visible CQDs are now commercially available, their infrared counterparts have not yet released their full potential, whereas the short-wave infrared range lacks efficient non-coherent sources. The project aims to explore the design of light-emitting diodes operating in the 1 to 5 µm range. The infrared light-emitting layer is sandwiched between charge injection layers that selectively inject electrons and holes. In the visible range, the quantum efficiency can be as high as 20%, but it quickly drops as longer wavelengths are targeted (1% at 1.3 µm and 0.1% at 2 µm) due to the lengthening of the radiative lifetime and inefficient shielding, which makes non-radiative processes dominant. Thus, new concepts need to be introduced to circumvent this drop in efficiency. The project will explore new concepts related to charge injection based on energy transfer and cascade effects as strategies to generate electrical gain. A second aspect of the project will relate to the design and fabrication of photonic structures to achieve better light outcoupling.
Contact
Emmanuel Lhuillier
17/09/2026
/
Thesis :
Funding :
66
Nanocrystal-based infrared camera
Domaines
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
Design of an infrared camera from colloidal quantum dots
Contact
Emmanuel Lhuillier
17/09/2026
/
Thesis :
Funding :
67
Imaging carrier transport in cross-sectional III-nitride LEDs
Domaines
Quantum optics/Atomic physics/Laser
Condensed matter
Non-linear optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental et théorique Description
Light Emitting Diodes (LEDs) made of nitride materials are universally used for energy-efficient lighting. However, such LEDs suffer from drastic drops in efficiency at high current densities and high emission wavelengths (green to red), whose causes are still debated due to their complexity. Understanding them requires to access carrier behavior inside the active region of the LED itself, taking into account microscopic structuration and heterogeneities. Most approaches in the literature focus on spatially averaged measurements, missing out the core of the problem.
This project proposes to develop a novel approach to directly image carrier behavior (injection, recombination et escape) in the active region of an in operando LED. The aim is to perform a pump-probe electrical and optical excitation on a cleaved device observed in cross-section in a low energy electron microscope. This approach includes several challenging steps, among them the cleavage of an operating device for an observation in cross-section and the development of a mixed electrical and optical excitation of the LED under the microscope. Numerical modelling will be developed to support experimental findings.
Contact
Mylène Sauty
17/09/2026
/
Thesis :
Funding :
68
Acousto-optic interaction for non-linear integrated mid-infrared photonics
Domaines
Non-linear optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
The goal of this internship is to develop and characterize nonlinear acousto-optic devices operating in the mid-infrared (wavelength of 3-8µm), leveraging broadband transparency and piezoelectricity of III-V semiconductor heterostructures. These devices will perform phase modulation, but also potentially on-chip optical routing, a pre-requisite for magnetic field-free optical isolation.
The internship will be mostly experimental, involving the use and development of two existing setups. The first one is a mid-IR integrated photonic bench allowing to characterize the operation of the devices (see above, right). The second one is a heterodyne interferometer, that allows to image the SAW-related vibration (amplitude and phase) of the sample surface to characterize the acoustic properties of the devices (see above, left).
Contact
Mathieu Jeannin
17/09/2026
/
Thesis :
Funding :
69
Mode-locked mid-IR fiber laser combs enabled by semiconductor saturable non-linear mirrors
Domaines
Condensed matter
Low dimension physics
Non-linear optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental et théorique Description
Description
See pdf file for all the details
Extremely brief summary:
The goal of the internship is to develop and optimize mid-IR nonlinear mirrors, supported by recent results from the host team, that target comb operation of fiber lasers at lambda=3.5 and 4.6 um, and explore the mode locking regime. Our collaborators at CORIA/CNRS laboratory have developed these novel sources, and our SESAMs will enable their mode-locking operation
Contact
Raffaele Colombelli
17/09/2026
/
Thesis :
Funding :
70
Ground-state cooling of multiple nanoparticles in optical levitation
Domaines
Quantum optics/Atomic physics/Laser
Nonequilibrium statistical physics
Quantum optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
Optical levitation is a subfield of optomechanics, in which a nanoparticle is trapped in a vacuum at the focal spot of a microscope objective. Because levitated systems outperform other mechanical resonators, they offer the tantalizing prospect of investigating quantum mechanics at the mesoscale. To display quantum properties, the nanoparticle must be cooled down close to its ground state, which is typically achieved through the monitoring of its displacements and a modulation of the laser’s intensity. Currently, the most exciting endeavor in the field lays in performing levitation with many-body systems. Many-body levitation would offer the opportunity to observe effects for the first time, like the mesoscopic entanglement of nanoparticles. Sadly, conventional cooling techniques, cannot be multiplexed and fail badly to cool several elements in parallel.
Throughout this internship, the candidate will experimentally implement a new cooling technique intended to achieve the first-ever cooling of a many-body system composed of multiple nanoparticles in levitation. Compared to former strategies, here, a spatial light modulator is used to spatially shape the wavefront of the laser beam. Such a modulation enables to exert simultaneously adapted optical forces on all the nanoparticles in order to reduce their individual vibrational motions, which ultimately leads to the cooling of the many-body system. A funding is available to continue this internship through a PhD.
Contact
Nicolas Bachelard
15/09/2026
/
Thesis :
Funding :
71
Quantum informational resources in quantum optics and superselection rules: the role of detection.
Domaines
Quantum information theory and quantum technologies
Quantum optics
Metrology
Type of internship
Théorique, numérique Description
Quantum information protocols are well defined mathematically, and there exist different benchmarks for establishing the necessary resources for potential quantum advantage, as for instance the discrete Wigner function negativies or "magic". At the same time, physical systems, and in particular, bosonic systems - as the quantum electromagnetic field - can be used to encode quantum information or, alternatively speaking, simulate quantum informational protocols. Nevertheless, for such systems, the "magical" resources enabling quantum advantage over classical simulations - i.e., enabling the efficient simulation of quantum protocols - are subjected to physical constraints, as symmetries and conservation laws. While abstract qubits have no particular symmetry, photons are bosons, symmetric identical particles.
During this internship, we will address the interplay between physical and informational resources to determine how detection may be seen as a non-classical resource in quantum optics based quantum information protocols. This will be done by constructing a original framework where the phase reference of quantum optical states is explicitly treated as a resource. In general, this resource is implicit and disregarded, obscuring the assessment of the resource tradeoff of bosonic quantum information protocols. We will analyze, in particular, the role of detection in BosonSampling protocols and in homodyne detection, that is usually considered as resourceless.
Contact
Perola Milman
15/09/2026
/
Thesis :
Funding :
72
Ultra-fast mid-IR modulators for applications to frequency combs
Domaines
Condensed matter
Low dimension physics
Non-linear optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental et théorique Description
See pdf file for all the details
Extreme brief summary:
The goal of the internship is to develop electrically reconfigurable meta-surfaces whose optical properties, in reflection/ absorption, can be addressed electrically on ultra-fast timescales. In particular, we target ultra-fast amplitude modulators for the mid-infrared spectral range.
These developments are crucial for applications such as laser phase stabilization, spectroscopy, frequency comb generation, mode-locking, optical communications.
Contact
Raffaele Colombelli
14/09/2026
/
Thesis :
Funding :
73
Shaping the polarization of light for tip-enhanced photoluminescence
Domaines
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
The goal of the internship is to develop an optical spectroscopy technique that is spatially resolved at the nanoscale, which is known as tip-enhanced photoluminescence (TEPL). This technique employs a laser beam focused onto the apex of a plasmonic metal tip (gold or silver) within an atomic force microscope (AFM) or scanning tunneling microscope (STM). To maximize the field enhancement effect at the tip apex, the focused beam must be radially polarized. To achieve this specific polarization, the intern will use a liquid-crystal polarization converter. The intern will then couple this beam to the plasmonic tip of an AFM or STM microscope, contribute to developing the software interface for controlling the optical detectors, and conduct TEPL experiments on semiconductor nanomaterial samples.
Contact
Eric Le Moal
14/09/2026
/
Thesis :
Funding :
74
Chaotic graphs in silicon photonics
Domaines
Quantum optics/Atomic physics/Laser
Non-relativistic quantum field theory, quantum optics, complex quantum systems
Quantum information theory and quantum technologies
Quantum optics
Non-linear optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental et théorique Description
The objective of the internship and the thesis is to investigate the combined effect of nonlinearities and complex interferences in these optical graphs, particularly regarding the formation and dynamics of soliton states. In a second time, we will inject non-classical light (squeezed light or entangled photons) to test if entanglement is sensitive to chaos.
Contact
Mélanie Lebental
11/09/2026
/
Thesis :
Funding :
75
Quantum plasmonic metamaterial time crystals
Domaines
Condensed matter
Quantum optics
Topological materials, Quantum Transport, Cavity Quantum Electrodynamics
Non-linear optics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
Photonic time crystals -optical systems that are strongly and periodically modulated in time- have recently emerged as a novel paradigm for controlling light–matter interactions through temporal modulation, analogous to how conventional spatial photonic crystals manipulate light through spatial structuring. Building on our recent demonstration of a photonic time crystal using a plasmonic metamaterial operating at Terahertz frequencies, this internship aims to lay the groundwork for realizing a quantum plasmonic metamaterial time crystal, that is a photonic time crystal that can operate in the few-photon regime. This will require developing a Terahertz spectroscopy setup with extended frequency coverage as well as the design and characterization of advanced plasmonic metamaterials.
Contact
Yannis LAPLACE
Laboratory : Laboratoire des solides irradiés - UMR 7642
Team : New electronic states - TeraX-lab
Team Website
Team : New electronic states - TeraX-lab
Team Website
11/09/2026
/
Thesis :
Funding :
76
Controlling the polarization of light with chiral plasmonic nanostructures
Domaines
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental Description
In this project we will (1) locally and electrically excite chiral plasmonic nanoparticles and (2) to use them to enhance the chiral properties of a new class of two-dimensional (2D) semiconductors called transition metal dichalcogenides (TMDCs), which are key for a new branch of physics and technology called valleytronics
Contact
Elizabeth Boer-Duchemin
10/09/2026
/
Thesis :
Funding :
77
Brownian motion in complex environments
Domaines
Condensed matter
Statistical physics
Biophysics
Soft matter
Physics of liquids
Nonequilibrium statistical physics
Physics of living systems
Non-equilibrium Statistical Physics
Kinetic theory ; Diffusion ; Long-range interacting systems
Hydrodynamics/Turbulence/Fluid mechanics
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental et théorique Contact
Thomas Salez
09/09/2026
/
Thesis :
Funding :