Polarization squeezing with cold atoms

被引：95
|
作者：
Josse, V
Dantan, A
Vernac, L
Bramati, A
Pinard, M
Giacobino, E
机构：
[1] Univ Paris 06, Ecole Normale Super, Lab Kastler Brossel, F-75252 Paris 05, France
[2] CNRS, F-75252 Paris 05, France
来源：
PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 10期
关键词：
D O I：
10.1103/PhysRevLett.91.103601
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the interaction of a nearly resonant linearly polarized laser beam with a cloud of cold cesium atoms in a high finesse optical cavity. We show theoretically and experimentally that the cross-Kerr effect due to the saturation of the optical transition produces quadrature squeezing on both the mean field and the orthogonally polarized vacuum mode. An interpretation of this vacuum squeezing as polarization squeezing is given and a method for measuring quantum Stokes parameters for weak beams via a local oscillator is developed.
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页数：4
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