Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Anna Minguzzi"'
Autor:
Irénée Frérot, Amit Vashisht, Martina Morassi, Aristide Lemaître, Sylvain Ravets, Jacqueline Bloch, Anna Minguzzi, Maxime Richard
Publikováno v:
Physical Review X, Vol 13, Iss 4, p 041058 (2023)
The elementary excitations in weakly interacting quantum fluids have a nontrivial nature which is at the basis of defining quantum phenomena such as superfluidity. These excitations and the physics they lead to have been explored in closed quantum sy
Externí odkaz:
https://doaj.org/article/d8b981ed45644d6889f6d69d4f486edc
Autor:
Francesco Vercesi, Quentin Fontaine, Sylvain Ravets, Jacqueline Bloch, Maxime Richard, Léonie Canet, Anna Minguzzi
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043062 (2023)
We consider a one-dimensional driven-dissipative exciton-polariton condensate under incoherent pump, described by the stochastic generalized Gross-Pitaevskii equation. It was shown that the condensate phase dynamics maps under some assumptions to the
Externí odkaz:
https://doaj.org/article/721596f183d0406c81c00b26cca4bf95
Autor:
Konstantinos Deligiannis, Quentin Fontaine, Davide Squizzato, Maxime Richard, Sylvain Ravets, Jacqueline Bloch, Anna Minguzzi, Léonie Canet
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043207 (2022)
The statistics of the fluctuations of quantum many-body systems are highly revealing of their nature. In driven-dissipative systems displaying macroscopic quantum coherence, as exciton polariton condensates under incoherent pumping, the phase dynamic
Externí odkaz:
https://doaj.org/article/6c752f9c60c2411489cb3be172c06b6d
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p L032064 (2021)
We study the persistent currents of an attractive Fermi gas confined in a tightly confining ring trap and subjected to an artificial gauge field all through the BCS-BEC crossover. At weak attractions, on the Bardeen-Cooper-Schrieffer (BCS) side, ferm
Externí odkaz:
https://doaj.org/article/be3ccb680f2d47f6af4b28799b87c333
Autor:
Petr Stepanov, Ivan Amelio, Jean-Guy Rousset, Jacqueline Bloch, Aristide Lemaître, Alberto Amo, Anna Minguzzi, Iacopo Carusotto, Maxime Richard
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
Owing to its driven-dissipative nature, and its solid-state environment, a resonantly driven polariton condensate can be accompanied by an incoherent reservoir of excitons. Stepanov et al. demonstrate that this situation strongly modifies the spectru
Externí odkaz:
https://doaj.org/article/7b82dbd690d64466ac805201511d885c
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013098 (2021)
We propose a protocol for creating moving, robust dispersive shock waves in interacting one-dimensional Bose fluids. The fluid is prepared in a moving state by phase imprinting and sent against the walls of a box trap. We demonstrate that the thus fo
Externí odkaz:
https://doaj.org/article/694a11c72b3b4d9d8be1a16f3e896b8c
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043118 (2020)
We propose a method to generate multimode N00N states with arrays of ultracold atoms. Our protocol requires a strong relative offset among the wells and a drive of the interparticle interaction at a frequency resonant with the offsets. The proposal i
Externí odkaz:
https://doaj.org/article/9bdad0bd90eb44308ad611a89ab075e4
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023158 (2020)
We theoretically investigate how the presence of a reservoir of incoherent excitations affects the superfluidity properties of resonantly driven polariton fluids. While in the absence of reservoir the two cases of a defect moving in a fluid at rest a
Externí odkaz:
https://doaj.org/article/58d945178b844a2e9009b3632449eea2
Publikováno v:
Condensed Matter, Vol 5, Iss 1, p 15 (2020)
We calculate the spectral function of a boson ladder in an artificial magnetic field by means of analytic approaches based on bosonization and Bogoliubov theory. We discuss the evolution of the spectral function at increasing effective magnetic flux,
Externí odkaz:
https://doaj.org/article/3001da0f8de7420fb0409b137279fd98
Publikováno v:
New Journal of Physics, Vol 21, Iss 2, p 023008 (2019)
We consider molecules made of two one-dimensional short-range-interacting bosonic atoms. We show that in the process of scattering of these molecules off a narrow barrier, odd incident waves produce no unbound atoms, even when the incident energy exc
Externí odkaz:
https://doaj.org/article/34550330c6704a87b1fd4b4171149752