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arXiv quant-ph/98010641998-01-28quant-ph

Phenomenological damping in trapped atomic Bose-Einstein condensates

S. Choi, S. A. Morgan, K. Burnett

备注：: 5 pages including 2 figures. To appear in Phys. Rev. A as a Brief Report
DOI：: 10.1103/PhysRevA.57.4057

英文摘要：

The method of phenomenological damping developed by Pitaevskii for superfluidity near the $λ$ 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. In addition, we show that the method may be employed to obtain numerically accurate ground states for a variety of trap potentials.

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