GRAVITATIONAL SISYPHUS COOLING OF RB-87 IN A MAGNETIC TRAP

被引：28

作者：

NEWBURY, NR ^{[1
]}

MYATT, CJ ^{[1
]}

CORNELL, EA ^{[1
]}

WIEMAN, CE ^{[1
]}

机构：

[1] UNIV COLORADO,DEPT PHYS,BOULDER,CO 80309

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.74.2196

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe a method for cooling magnetically trapped 87Rb atoms by irreversibly cycling the atoms between two trapped states. The cooling force is proportional to gravity. The atoms are cooled to 1.5 K in the vertical dimension. We have extended this cooling method to two dimensions through anharmonic mixing, achieving a factor of 25 increase in the phase space density over an uncooled sample. This cooling method should be an important intermediate step toward achieving a Bose-Einstein condensate of Rb atoms. © 1995 The American Physical Society.

引用

页码：2196 / 2199

页数：4

共 23 条

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