Spin coupling between cold atoms and the thermal fluctuations of a metal surface

被引：170

作者：

Jones, MPA ^{[1
]}

Vale, CJ ^{[1
]}

Sahagun, D ^{[1
]}

Hall, BV ^{[1
]}

Hinds, EA ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BW, England

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.91.080401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe an experiment in which Bose-Einstein condensates and cold atom clouds are held by a microscopic magnetic trap near a room-temperature metal wire 500 mum in diameter. The lifetime for atoms to remain in the microtrap is measured over a range of distances down to 27 mum from the surface of the metal. We observe the loss of atoms from the microtrap due to spin flips. These are induced by radio-frequency thermal fluctuations of the magnetic field near the surface, as predicted but not previously observed.

引用

页数：4

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