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58 papers · 1 filter
Critical speed of a binary superfluid of light
Pierre-Élie Larré, Claire Michel, Nicolas Cherroret
We theoretically study the critical speed for superfluid flow of a two-dimensional miscible binary superfluid of light past a polarization-sensitive optical obstacle. This speed co…
Universal Random Matrix Behavior of a Fermionic Quantum Gas
Maxime Dixmerias, Giuseppe Del Vecchio Del Vecchio, Cyprien Daix +6
The pursuit of universal governing principles is a foundational endeavor in physics, driving breakthroughs from thermodynamics to general relativity and quantum mechanics. In 1951,…
Downfolding a quantum many-body system: the quasi-1D Fermi polaron
Lovro Anto Barišić, Giuliano Orso, Frédéric Chevy +1
We investigate the properties of an impurity immersed in an ensemble of spin-polarized fermions confined in a tight quantum wire. We use a non-perturbative variational approach tha…
Dynamics of spatial phase coherence in a dissipative Bose-Hubbard atomic system
Rémy Vatré, Raphaël Bouganne, Manel Bosch Aguilera +4
We investigate the loss of spatial coherence of one-dimensional bosonic gases in optical lattices illuminated by a near-resonant excitation laser. Because the atoms recoil in a ran…
Quantum kinetics of quenched two-dimensional Bose superfluids
Clément Duval, Nicolas Cherroret
We study theoretically the non-equilibrium dynamics of a two-dimensional (2D) uniform Bose superfluid following a quantum quench, from its short-time (prethermal) coherent dynamics…
Low-energy prethermal phase and crossover to thermalization in nonlinear kicked rotors
Maxime Martinez, Pierre-Élie Larré, Dominique Delande +1
In the presence of interactions, periodically-driven quantum systems generically thermalize to an infinite-temperature state. Recently, however, it was shown that in random kicked…