Spin Squeezing via One-Axis Twisting with Coherent Light
Spin Squeezing via One-Axis Twisting with Coherent Light
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DOI：
10.1103/physrevlett.94.023003
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发表时间：
2004-10
影响因子：
2.9
通讯作者：
M.Takeuchi;S.Ichihara;T.Takano;M.Kumakura;T.Yabuzaki;Y.Takahashi
中科院分区：
文献类型：
--
作者：
M.Takeuchi;S.Ichihara;T.Takano;M.Kumakura;T.Yabuzaki;Y.Takahashi
本文提出了一种新的原子自旋压缩方法，该方法基于原子与光场的相互作用，即光场的顺磁法拉第旋转和光场的顺磁场。由于该方法不需要投影过程、压缩光场或原子间的特殊相互作用，因此可以广泛应用于许多系统。压缩参数的可达到范围是S-2 / 5，其中S是总自旋，它受到相干光施加的额外扰动和自旋分布的球形性质的限制。
We propose a new method of spin squeezing of atomic spin, based on the interactions between atoms and off-resonant light which are known as paramagnetic Faraday rotation and fictitious magnetic field of light. Since the projection process, squeezed light, or special interactions among the atoms are not required in this method, it can be widely applied to many systems. The attainable range of the squeezing parameter is ζ & S − 2 / 5 , where S is the total spin, which is limited by additional fluctuations imposed by coherent light and the spherical nature of the spin distribution.