Evolution from entanglement to decoherence of bipartite mixed "X" states

Evolution from entanglement to decoherence of bipartite mixed "X" states
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DOI:
10.26421/qic7.5-6-3
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发表时间:
2005-03
期刊:
Quantum Inf. Comput.
影响因子:
--
通讯作者:
Ting Yu;J. Eberly
Ting Yu;J. Eberly
中科院分区:
其他
文献类型:
--
作者:
Ting Yu;J. Eberly

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我们研究了一类二分混合态,我们称之为X状态,并报告了几个分析结果有关的早期阶段的退相干或所谓的纠缠猝死(ESD)下的时间演化中存在的常见类型的环境噪声的发生。在某些情况下,通过应用纯粹的局部手术来避免猝死是可行的。
We examine a class of bipartite mixed states which we call X states and report several analytic results related to the occurrence of early-stage decoherence or so-called entanglement sudden death (ESD) under time evolution in the presence of common types of environmental noise. Avoidance of sudden death by application of purely local operations is shown to be feasible in some cases.