NEUTRAL CESIUM ATOMS IN STRONG MAGNETIC-QUADRUPOLE FIELDS AT SUB-DOPPLER TEMPERATURES

被引：26

作者：

HOPE, A

HAUBRICH, D

MULLER, G

KAENDERS, WG

MESCHEDE, D

机构：

[1] Institut fiir Quantenoptik, Universität Hannover, Hannover 1

来源：

EUROPHYSICS LETTERS | 1993年 / 22卷 / 09期

关键词：

D O I：

10.1209/0295-5075/22/9/006

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have investigated optical capture of neutral cesium atoms by radiation pressure forces in a stiff magnetic-quadrupole field. Permanent magnets were used to generate field gradients ranging from 60 G/cm to more than 300 G/cm. With increasing gradient we observe a step decrease in the equilibrium number of trapped atoms but only a moderate reduction of their density. From the dynamics of the trapped atomic sample we derive temperatures as low as 40 muK or 30% of the Doppler limit even in these strong magnetic-quadrupole fields.

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页码：669 / 674

页数：6

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