One-way LOCC indistinguishability of maximally entangled states

One-way LOCC indistinguishability of maximally entangled states
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最大纠缠态的单向 LOCC 不可区分性

DOI:
10.1007/s11128-013-0691-9
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发表时间:
2014-03
影响因子:
2.5
通讯作者:
Cao, Tian-Qing
Cao, Tian-Qing
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Zhang, Zhi-Chao;Wen, Qiao-Yan;Gao, Fei;Tian, Guo-Jing;Cao, Tian-Qing

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本文主要研究正交最大纠缠态的局部不可分辨性。首先,我们给出了用单向局部操作和经典通信(LOCC)区分这些状态的可行充要条件。其次,对于该条件的应用,我们展示了一类可以确定地局部区分的最大纠缠态。进一步,在(for)中证明了单向LOCC的不可分辨最大纠缠态集。有趣的是,我们发现(for)中存在这样的状态集合,它们不能被单向LOCC完全区分。最后,我们推测单向LOCC中存在较少的不可区分最大纠缠态。
In this letter, we mainly study the local indistinguishability of mutually orthogonal maximally entangled states, which are in canonical form. Firstly, we present a feasible sufficient and necessary condition for distinguishing such states by one-way local operations and classical communication (LOCC). Secondly, for the application of this condition, we exhibit one class of maximally entangled states that can be locally distinguished with certainty. Furthermore, sets ofindistinguishable maximally entangled states by one-way LOCC are demonstrated in(for). Interestingly, we discover there exist sets ofsuch states in(for), which are not perfectly distinguishable by one-way LOCC. Finally, we conjecture that there existor fewer indistinguishable maximally entangled states inby one-way LOCC.
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