ENTANGLEMENT DYNAMICS OF THREE-QUBIT STATES UNDER A SPIN ENVIRONMENT
ENTANGLEMENT DYNAMICS OF THREE-QUBIT STATES UNDER A SPIN ENVIRONMENT
复制标题
自旋环境下三量子位态的纠缠动力学
DOI:
10.1142/s0219749911006739
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发表时间:
2011-11
影响因子:
1.2
通讯作者:
Wang, An Min
中科院分区:
文献类型:
--
作者:
Ma, Xiao San;Liu, Gao Sheng;Wang, An Min
In this paper, we investigate the entanglement dynamics of three-qubit states under a spin environment. From the analysis, we find that the entanglement dynamics of the three-qubit states depends not only on the coupling strength between the system and the environment and the number of degrees of freedom of the environment but also on the tunneling matrix elements of the spin environment and the specific state of concern. Specifically, the entanglement dynamics of the GHZ state, the W state, and the Werner state have been analyzed in detail and the conditions to identify the decoherence-free subspaces of our model have been discussed.
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