Particle number fluctuations in a cloven trapped Bose gas at finite temperature - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review A : Atomic, molecular, and optical physics [1990-2015] Année : 2010

Particle number fluctuations in a cloven trapped Bose gas at finite temperature

Résumé

We study fluctuations in the atom number difference between two halves of a harmonically trapped Bose gas in three dimensions. We solve the problem analytically for non interacting atoms. In the interacting case we find an analytical solution in the Thomas-Fermi and high temperature limit in good agreement with classical field simulations. In the large system size limit, fluctuations in the number difference are maximal for a temperature $T\simeq 0.7 \,T_c$ where $T_c$ is the critical temperature, independently of the trap anisotropy. The occurrence of this maximum is due to an interference effect between the condensate and the non-condensed field.
Fichier principal
Vignette du fichier
paper.pdf (256.71 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00460982 , version 1 (03-03-2010)

Identifiants

Citer

Alice Sinatra, Yvan Castin, Yun Li. Particle number fluctuations in a cloven trapped Bose gas at finite temperature. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2010, 81, pp.053623. ⟨hal-00460982⟩
70 Consultations
113 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More