Nonlinear dynamics of a Bose-Einstein condensate in a magnetic waveguide -: art. no. 040402

被引：54

作者：

Ott, H ^{[1
]}

Fortágh, J ^{[1
]}

Kraft, S ^{[1
]}

Günther, A ^{[1
]}

Komma, D ^{[1
]}

Zimmermann, C ^{[1
]}

机构：

[1] Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 04期

关键词：

TIME-DEPENDENT TRAPS; ATOMS; INTERFEROMETRY;

D O I：

10.1103/PhysRevLett.91.040402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the internal and external dynamics of a Bose-Einstein condensate in an anharmonic magnetic waveguide. An oscillating condensate experiences a strong coupling between the center of mass motion and the internal collective modes. Because of the anharmonicity of the magnetic potential, not only the center of mass motion shows harmonic frequency generation, but also the internal dynamics exhibit nonlinear frequency mixing. Thereby, the condensate shows shape oscillations with an extremely large change in the aspect ratio of up to a factor of 10. We describe the data with a theoretical model to high accuracy. For strong excitations we test the experimental data for indications of a chaotic behavior.

引用

页数：4

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