We are currently studying the impact of polarization effects on both the performance of fiber optic link transmission and the sensitivity of links to seismic vibrations and temperature variations.
Fundamental limitations of frequency dissemination due to polarization effects.
The master’s student will participate in the development of a new-generation molecular clock specially designed for precision vibrational spectroscopy of cold molecules in the gas phase.
Precision Measurements and tests of fundamental physics with cold molecules.
The master’s student will join the LPL’s efforts to develop a compact and versatile next-generation microwave (MW) spectrometer operating in the 2-20 GHz range.
High-Sensitivity Microwave Spectroscopy for Precision Measurements and Tests of Fundamental Physics.
This internship will focus on measuring mid-infrared molecular transitions of methanol (CH3OH), a molecule known for its enhanced sensitivity to changes in µ. Looking for potential variations of the proton-to-electron mass ratio and other tests of fundamental physics via precision measurements with molecules.
The internship aims to implement a new imaging device, which will involve upgrading the corresponding optical system as well as real-time monitoring of the experiment and data analysis.
Non-equilibrium dynamics of degenerate 1D Bose gases.
The objective of this master’s project will be to develop continuous measurements using cold atom interferometers in order to improve their sensitivity while maintaining their accuracy.
A continuous cold-atom interferometer to achieve quantum noise detection limit in inertial force measurements.
This theoretical internship in quantum optics is part of a collaboration between the Light, Matter and Interfaces Laboratory (LuMIn) at ENS Paris-Saclay and the Physics Laboratory at ENS Paris (LPENS). The internship (and the thesis that follows) are funded by an ANR project.
How robust collective effects are against dephasing processes?
The thesis will build on the work of another student, and you will benefit from the highly interdisciplinary environment of LuMIn’s “Biophotonics” team.
In addition, the doctoral student will be part of ANR SINFONIA (2024-2028).
Quantum sensing of neuronal electrical activity at the nanoscale.
As part of this internship, we would like to study theoretically how the superconducting order parameter reacts to heterogeneities such as isolated magnetic impurities or clusters of magnetic impurities.
Flat band superconductors: what is the length scale?
The student will work closely with two permanent researchers. One objective will be to develop a hybrid sample using granular aluminum superconducting circuits on the one hand and a superconducting qubit on the other.
Superconducting quantum bit readout with a single microwave photon-to-electron detector.
The student will study analytically and numerically the dynamics of multiple superconducting condensates in reduced models of two-dimensional, multi-band superconductors with spin-orbit coupling.
Quantum geometry effects on collective modes in superconductors.
This project investigates the development of a quantum channel mediated by stimulated Raman scattering (SRS) when a classical field coexists with a single frequency-encoded photonic state.
Impact of stimulated Raman scattering on time-frequency single photon encoding for quantum communication protocols.
The internship will focus on developing an optical device capable of generating linear cluster states with time-distributed entangled macro-knots, each comprising several spectral components.
Experimental temporal entanglement in a linear cluster state.
The intern will actively participate in the development of the cryogenic platform. In particular, he/she will participate in adapting optics, microwaves, and radio frequencies to the cryogenic platform.
Quantum simulation with a hybrid Rydberg atom platform.
The Master 2 internship aims to design, build, and test tunable optical networks, which will lead to a doctoral thesis (starting in September 2026).
A tunable optical lattice for ultra-cold quantum gases.
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This internship could then lead to a doctoral thesis focused on the dynamics of condensates in quasi-1D systems.
Position dependent two- and three-body interactions in Bose-Einstein condensates.
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In this experimental work, we propose the use of a new technique to precisely control the angular alignment between layers in a vdW heterostructure.
Topological states in rhombohedral graphene with a moiré.
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During this internship we want to explore the potential of this breakthrough, extending it to the study of spin-photon interfaces and to realistic, pulsed excitation regimes.
Theory of atom-photon and spin-photon interfaces: from cavity-QED to waveguide-QED.
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The student will actively participate in sample fabrication (assembly of vdW heterostructures, angular control of layers using AFM, micro- and nanofabrication processes) and low-temperature electronic transport measurements.
Superconductivity and topological states in twisted bilayer graphene.
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The main objective of this project is to study, using optical and transport measurements, the existence of non-Abelian states at zero magnetic field in very high-quality twisted MoTe2 heterostructures.
Non-Abelian states at zero magnetic field in next-generation moiré MoTe2 heterostructures.
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The objective of this PhD is to design and fabricate a millimeter-wave qubit [2] and a millimeter-wave readout resonator. A solid background in quantum mechanics and an interest in simulations and Python coding are recommended.
Towards NbN 100 GHz Qubits: A New Platform for
Condensed Matter Physics.
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The internship aims at extending the Graphix software from discrete variables to continuous variables while keeping in mind optical CV architectures.
Graphix: Measurement-Based Quantum Computing with Continuous Variables.
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