Collective excitations of a 87Rb Bose condensate in the Thomas-Fermi regime

被引：33

作者：

Fort, C ^{[1
]}

Prevedelli, M

Minardi, F

Cataliotti, FS

Ricci, L

Tino, GM

Inguscio, M

机构：

[1] European Lab Nonlinear Spect, INFM, I-50125 Florence, Italy

[2] Univ Florence, Dipartimento Fis, I-50125 Florence, Italy

[3] Univ Trent, Dipartimento Fis, INFM, I-38050 Trent, Italy

[4] Univ Naples Federico II, INFM, Dipartimento Sci Fis, I-80126 Naples, Italy

来源：

EUROPHYSICS LETTERS | 2000年 / 49卷 / 01期

关键词：

D O I：

10.1209/epl/i2000-00112-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Collective excitations have been observed in a Rb-87 Bose condensate, confined in a magneto-static, elongated, harmonic trap. We have measured the frequency of two different modes with zero angular momentum along the symmetry axis of the trap. Both the frequencies are in good agreement with the values predicted by the hydrodynamic theory of superfluids holding in the Thomas-Fermi regime.

引用

页码：8 / 13

页数：6

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