Condensate statistics in one-dimensional interacting bose gases: Exact results
Anno: 2003
Autori: Carusotto I., Castin Y.
Affiliazione autori: Ecole Normale Super, Lab Kastler Brossel, F-75231 Paris 05, France.
Abstract: Recently, a quantum Monte Carlo method alternative to the path integral Monte Carlo method was developed for solving the N-boson problem; it is based on the stochastic evolution of classical fields. Here we apply it to obtain exact results for the occupation statistics of the condensate mode in a weakly interacting trapped one-dimensional Bose gas. The temperature is varied across the critical region down to temperatures lower than the trap level spacing. We also derive the condensate statistics in the Bogoliubov theory: this reproduces the exact results at low temperature and explains the suppression of odd numbers of noncondensed particles at Tsimilar or equal to0.
Giornale/Rivista: PHYSICAL REVIEW LETTERS
Volume: 90 (3) Da Pagina: 30401-1 A: 30401-4
Parole chiavi: Transition-temperature; Einstein Condensation; Fluctuations; Validity; Number; BosonsDOI: 10.1103/PhysRevLett.90.030401Citazioni: 35dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-03-16Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
