A5077359103- Dark Matter and Cosmic Phenomena
- Quantum Electrodynamics and Casimir Effect
- Quantum optics and atomic interactions
- Laser-Matter Interactions and Applications
- Experimental and Theoretical Physics Studies
- Random lasers and scattering media
- Cold Atom Physics and Bose-Einstein Condensates
- Advanced Fiber Laser Technologies
- Strong Light-Matter Interactions
- Physics of Superconductivity and Magnetism
- Orbital Angular Momentum in Optics
- Atomic and Subatomic Physics Research
- Advanced Surface Polishing Techniques
- Cosmology and Gravitation Theories
Collège de France
2021-2025
Laboratoire Kastler Brossel
2021-2025
Centre National de la Recherche Scientifique
2021-2024
École Normale Supérieure - PSL
2021-2024
Sorbonne Université
2021-2024
Université Paris Sciences et Lettres
2021-2024
In inflationary cosmology, the rapid expansion of early universe resulted in spontaneous production cosmological particles from vacuum fluctuations, observable today cosmic microwave background anisotropies. The analogue particle creation a quantum fluid could provide insight, but an observation has not yet been achieved. Here we report laboratory, using quenched 3-dimensional light. We observe acoustic peaks density power spectrum, close quantitative agreement with quantum-field theoretical...
We implement Bragg-like spectroscopy in a paraxial fluid of light by imprinting analogues short Bragg pulses on the photon using wavefront shaping with spatial modulator. report measurement static structure factor, $S(k)$, and we find quantitative agreement prediction Feynman relation revealing indirectly presence pair-correlated particles fluid. Finally, improve resolution over previous methods obtain dispersion including linear phononic regime for weakly interacting photons low sound velocity.
The nonlinear Schrödinger equation (NLSE) is a general used to model the propagation of light in media.This mathematically isomorphic Gross-Pitaevskii (GPE) (Pitaevskij & Stringari, 2016) describing evolution cold atomic ensembles.Recently, growing field quantum fluids (Carusotto Ciuti, 2013) has proven fruitful testbed for several fundamental and classical phenomena such as superfluidity (Michel et al., 2018) or turbulence (Baker-Rasooli 2023).Providing flexible, modern performant framework...