PMID: 11909432Mar 23, 2002Paper

Quantum instability of a Bose-Einstein condensate with attractive interaction

Physical Review Letters
G P BermanA R Bishop

Abstract

We study the quantum and the mean-field Gross-Pitaevskii (GP) dynamics of a Bose-Einstein condensate gas confined in a toroidal trap. According to GP, if the interatomic interaction is attractive, the rotational states of the system can be dynamically stable or unstable depending on the strength of the mean-field energy. The full quantum analysis, however, reveals that the condensate is always unstable. Quantum fluctuations are particularly important close to the GP stability borderline, even for systems with a relatively large number of condensate atoms.

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Citations

Apr 20, 2005·Chaos·G P Berman, F M Izrailev
Mar 6, 2004·Physical Review Letters·Chuanwei ZhangQian Niu
Feb 9, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Guishu ChongQiongtao Xie
Jul 23, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Wen-Ge WangBaowen Li
Apr 19, 2017·Physical Review. E·Italo Guarneri
Feb 3, 2004·Physical Review Letters·G P BermanA Smerzi
Nov 22, 2002·Physical Review Letters·Hiroki Saito, Masahito Ueda

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