Tuning the scattering length with an optically induced Feshbach resonance

被引：463

作者：

Theis, M

Thalhammer, G

Winkler, K

Hellwig, M

Ruff, G

Grimm, R

Denschlag, JH

机构：

[1] Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria

[2] Austrian Acad Sci, Inst Quantenopt & Quanteninformat, A-6020 Innsbruck, Austria

[3] Bates Coll, Dept Phys, Lewiston, ME 04240 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 12期

基金：

奥地利科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.93.123001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate optical tuning of the scattering length in a Bose-Einstein condensate as predicted by Fedichev et al. [Phys. Rev. Lett. 77, 2913 (1996)]. In our experiment, atoms in a (87)Rb condensate are exposed to laser light which is tuned close to the transition frequency to an excited molecular state. By controlling the power and detuning of the laser beam we can change the atomic scattering length over a wide range. In view of laser-driven atomic losses, we use Bragg spectroscopy as a fast method to measure the scattering length of the atoms.

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收藏

页码：123001 / 1

页数：4

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