Suppression of Penning ionization by spin polarization of cold He(2 3S) atoms -: art. no. 050702

被引：28

作者：

Herschbach, N ^{[1
]}

Tol, PJJ ^{[1
]}

Hogervorst, W ^{[1
]}

Vassen, W ^{[1
]}

机构：

[1] Free Univ Amsterdam, Fac Sci, Div Phys & Astron, NL-1081 HV Amsterdam, Netherlands

来源：

PHYSICAL REVIEW A | 2000年 / 61卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.61.050702

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We measure the suppression of Penning ionization in an ultracold He(2 S-3(1)) atomic cloud after spin-polarizing the atoms by optical pumping in a small magnetic field. An upper limit of 6x10(-12) cm(3)/s for the ionization rate constant is deduced, at least a factor 20 lower than measured in an unpolarized gas.

引用

页数：3

共 9 条

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