Quadripartite entanglement with injected atomic coherence
Quadripartite entanglement with injected atomic coherence
复制标题
注入原子相干性的四方纠缠
DOI:
10.1088/0953-4075/49/1/015501
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发表时间:
2016-01
期刊:
影响因子:
--
通讯作者:
Xiao Zhu
中科院分区:
文献类型:
--
作者:
Xidong Wang;Fei Wang;Xiao Zhu
We propose a scheme to generate quadripartite Greenberger-Horne-Zeilinger entanglement by coherently preparing the five-level K-type atoms in a superposition initially. The conditions of initial atomic populations and atomic coherences to obtain the output genuine quadripartite entanglement are analyzed numerically in detail. It is found that good entanglement occurs when populations of the bottom levels are much more than the upper levels, or vice versa. In addition, the dependence of quantum entanglement on linear gain coefficient, cavity damping constant, and thermal fluctuation effect are also discussed. Our numerical results confirm that the quadripartite entanglement can be realized by choosing proper values of the initial atomic population, which provide convenience for experimental implementation.
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