PERMANENT-MAGNET TRAP FOR COLD ATOMS

被引：49

作者：

TOLLETT, JJ ^{[1
]}

BRADLEY, CC ^{[1
]}

SACKETT, CA ^{[1
]}

HULET, RG ^{[1
]}

机构：

[1] RICE UNIV, RICE QUANTUM INST, HOUSTON, TX 77251 USA

来源：

PHYSICAL REVIEW A | 1995年 / 51卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.51.R22

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the trapping of neutral atoms in a permanent magnet trap. Approximately 1×108 ground-state lithium atoms have been confined in a nonzero magnetic-field minimum produced by six permanent magnets in an Ioffe configuration. These atoms have a kinetic temperature of 1.1 mK and a peak density of approximately 3×109 cm-3. The trapped-atom lifetime is 240 s, limited by collisions with background gas. This trap provides an environment in which quantum-statistical effects, atomic collisions, and other ultralow-temperature phenomena can be studied. © 1995 The American Physical Society.

引用

页码：R22 / R25

页数：4

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