Tuning the dipolar interaction in quantum gases -: art. no. 130401

被引：307

作者：

Giovanazzi, S ^{[1
]}

Görlitz, A ^{[1
]}

Pfau, T ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Phys 5, D-70550 Stuttgart, Germany

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.89.130401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the tunability of the interaction between permanent dipoles in Bose-Einstein condensates. Based on time-dependent control of the anisotropy of the dipolar interaction, we show that even the very weak magnetic dipole coupling in alkali gases can be used to excite collective modes. Furthermore, we discuss how the effective dipolar coupling in a Bose-Einstein condensate can be tuned from positive to negative values and even switched off completely by fast rotation of the orientation of the dipoles.

引用

页数：4

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