Phenomenological damping in trapped atomic Bose-Einstein condensates

被引：176

作者：

Choi, S ^{[1
]}

Morgan, SA ^{[1
]}

Burnett, K ^{[1
]}

机构：

[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

来源：

PHYSICAL REVIEW A | 1998年 / 57卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.57.4057

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The method of phenomenological damping developed by Pitaevskii (Zh. Eksp. Teor. Fit. 35, 408 (1958) [Sov. Phys. JETP 35, 282 (1959)]) for superfluidity near the lambda point is simulated numerically for the case of a dilute, alkali, inhomogeneous Bose-condensed gas near absolute zero. We study several features of this method in describing the damping of excitations in a Bose-Einstein condensate. Ln addition, we show that the method may be employed to obtain numerically accurate ground states for a variety of trap potentials.

引用

页码：4057 / 4060

页数：4

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