Time-dependent variational approach to Bose-Einstein condensation

被引：43

作者：

Salasnich, L ^{[1
]}

机构：

[1] Univ Milan, Ist Nazl Fis Mat, Unita Milano, Dipartimento Fis, I-20133 Milan, Italy

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2000年 / 14卷 / 01期

关键词：

D O I：

10.1142/S0217979200000029

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We discuss the mean-held approximation far a trapped weakly-interacting Bose-Einstein condensate (BEC) and its connection with the exact many-body problem by deriving the Gross-Pitaevskii action of the condensate. The mechanics of the BEC in a harmonic potential is studied by using a variational approach with time-dependent Gaussian trial wave-functions. In particular, we analyze the static configurations, the stability and the collective oscillations for both ground-state and vortices.

引用

页码：1 / 11

页数：11

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