One-way local distinguishability of generalized Bell states in arbitrary dimension

One-way local distinguishability of generalized Bell states in arbitrary dimension
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任意维广义贝尔态的单向局部可区分性

DOI:
10.1103/physreva.99.022307
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发表时间:
2019-02
期刊:
影响因子:
2.9
通讯作者:
Xiong Zong-Xing
Xiong Zong-Xing
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Wang Yan-Ling;Li Mao-Sheng;Xiong Zong-Xing

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在本文中,我们研究了单向局部操作和经典通信(LOCC)下任意维广义贝尔态的可区分性。我们为每组广义贝尔状态引入一个可接受的解集和一个不可接受的解集。存在于可接受解集中但不存在于不可容许解集中的任何元素都意味着给定集合的单向 LOCC 可区分性。该准则在以下两个方面非常方便:两个解集都可以轻松计算,并且一旦该准则可以成功应用于给定的集合,它立即呈现出明确的区分策略。此外,范在物理方面的成绩。莱特牧师。 92, 177905 (2004) 也可以作为我们结果的特殊情况来推断。对于不存在这样的元素的情况,我们反驳了Yang等人提出的猜想。在量子信息中。过程。 17, 29 (2018) 提出了一个反例。
In this paper, we study the distinguishability of arbitrary dimensional generalized Bell states under one-way local operations and classical communication (LOCC). We introduce an admissible solutions set and a nonadmissible solutions set for each set of generalized Bell states. Any element that exists in the admissible solution set but not in the nonadmissible one implies the one-way LOCC distinguishablity of a given set. This criterion is very convenient in the following two aspects: both solution sets can be calculated easily and, once the criterion can be applied successfully for a given set, it immediately presents an explicit distinguishing strategy. Furthermore, Fan's results in Phys. Rev. Lett. 92, 177905 (2004) can also be deduced as special cases of our results. For the case no such element exists, we disprove a conjecture proposed by Yang et al. in Quantum Inf. Process. 17, 29 (2018) by presenting a counterexample.
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