Restoring distribution entanglement via environment-assisted measurement and quantum measurement reversal under various decoherence sources
Restoring distribution entanglement via environment-assisted measurement and quantum measurement reversal under various decoherence sources
复制标题
通过环境辅助测量和各种退相干源下的量子测量反转来恢复分布纠缠
DOI:
10.1088/1555-6611/ab3daa
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发表时间:
2019-09
期刊:
影响因子:
1.2
通讯作者:
Li Wen Juan
中科院分区:
文献类型:
--
作者:
Wang Qiong;Peng Gao Feng;Li Wen Juan
We examine the validity of the environment-assisted measurement (EAM) and quantum measurement reversal (QMR) operation in the restoration of distributed entanglement for an arbitrarily entangled bipartite pure state under three kinds of typical noisy quantum channels. We derive the exact expressions of the optimal final quantum entanglement, show explicitly that the EAM and QMR operation indeed helps for recovering the distributed entanglement from amplitude damping, phase damping and depolarizing. Comparing with the results obtained by the method of weak measurement and QMR, our results show notable superiorities on adaptation scope and success probability.
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