Spin Squeezing and Quantum Fisher Information in One-Axis Twisting Model with Decay

被引：0
作者：
Song-Song Li
Guo-Jin Hu
Zhen-Ya Liu
机构：
[1] Jiangxi Institute of Education,Department of Physics
来源：
International Journal of Theoretical Physics | 2013年 / 52卷
关键词：
Spin squeezing; Quantum Fisher information; Decay rate; One-axis twisting;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We investigate spin squeezing and the reciprocal of the mean quantum Fisher information per particle (RMQFI) of a collective spin governed by a one-axis twisting Hamiltonian with decay. In particular, we are interesting in the dependence of spin squeezing and RMQFI on the decay rate. The larger decay rate induces to stronger squeezing in certain regime and the larger period of RMQFI.
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页码：3462 / 3466
页数：4
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