Temps de cohérence d'un condensat de Bose-Einstein dans un gaz isolé harmoniquement piégé

Autor: Castin, Yvan, Sinatra, Alice

Publikováno v: Comptes Rendus. Physique
Comptes Rendus. Physique, Académie des sciences (Paris), 2018, 19, pp.316. ⟨10.1016/j.crhy.2018.04.001⟩

We study the condensate phase dynamics in a low-temperature equilibrium gas of weakly interacting bosons, harmonically trapped and isolated from the environment. We find that at long times, much longer than the collision time between Bogoliubov quasi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ab5336aff97bb85cf39ed6134280e74
https://hal.archives-ouvertes.fr/hal-01726498v2/file/francais.pdf

A liquid-gas transition for bosons with attractive interaction in one dimension

Autor: Herzog, Christopher, Olshanii, Maxim, Castin, Yvan

Publikováno v: Comptes Rendus. Physique
Comptes Rendus. Physique, 2014, 15, pp.285. ⟨10.1016/j.crhy.2013.12.004⟩
Comptes Rendus. Physique, Académie des sciences (Paris), 2014, 15, pp.285. ⟨10.1016/j.crhy.2013.12.004⟩

We consider a one dimensional system of $N$ bosons interacting via an attractive Dirac delta function potential. We place the bosonic quantum particles at thermal equilibrium in a box of length $L$ with periodic boundary conditions. At large $N$ and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5be37ce7f3daea2edbbc13a311a313a7
https://hal.science/hal-00904756v3/document