Excited states of a dilute Bose-Einstein condensate in a harmonic trap

被引：56

作者：

Fetter, AL ^{[1
]}

Rokhsar, D

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[2] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW A | 1998年 / 57卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.57.1191

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The low-lying hydrodynamic normal modes of a dilute Bose-Einstein gas in an isotropic harmonic trap determine the corresponding Bogoliubov amplitudes. In the Thomas-Fermi limit, these nudes have large low-temperature occupation numbers and they permit an explicit construction of the dynamic structure function S(q,omega). The total noncondensate number N'(0) at zero temperature increases like R-6, where R is the condensate radius measured in units of the oscillator length. The lowest dipole modes are constructed explicitly in the Bogoliubov approximation. [S1050-2947(97)02811-4].

引用

页码：1191 / 1201

页数：11

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