Distinguishability of generalized Bell states in arbitrary dimension system via one-way local operations and classical communication

Distinguishability of generalized Bell states in arbitrary dimension system via one-way local operations and classical communication
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任意维系统中广义贝尔态通过单向局部运算和经典通信的可区分性

DOI:
10.1007/s11128-021-02990-9
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发表时间:
2021-02
影响因子:
2.5
通讯作者:
王彩虹
王彩虹
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
杨迎辉;穆高峰;原江涛;王彩虹

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利用单向局域操作和经典通信研究了任意维系统中广义Bell态的可重构性。首先,通过分析三种局部酉变换,我们为每组GBS定义了两个概念,即,一个容许解集和一个非容许解集。然后,我们证明了一个集合的任何GBS可以区分单向LOCC,如果是非空的。Fan's and Wang et al.“我们的结果可以涵盖我们的结果(Phys Rev Lett 92:177905,2004:Phys Rev A 99:022307,2019)。与Wang et al.结果表明,我们的局部可重构性的成功率显著提高,特别是对于偶数维系统。在某些情况下,它几乎可以增加。然而,仍然有一些情况下,我们的方法不能工作。对于未覆盖的情况下,我们定义了一个未覆盖的集合,并提出,没有比我们的方法更强大的本地歧视的GBS,如果未覆盖的集合是一个子集的不同的GBS集。
We investigate the distinguishability of generalized Bell states (GBSs) in arbitrary dimension system by one-way local operations and classical communication (LOCC). Firstly, by analyzing three local unitary transformations, we define two concepts for each setof GBSs, i.e., an admissible solutions setand agenuinelynonadmissible solutions set. Then, we show that a setof any GBSs can be distinguished by one-way LOCC ifis nonempty. Fan’s and Wang et al.’s results (Phys Rev Lett 92:177905, 2004: Phys Rev A 99:022307, 2019) can be covered by our result. Comparing with Wang et al.’s result, our successful ratio of local distinguishability improves markedly, especially for even dimension system. In some cases, it can increase by nearly. However, there are still some cases where our method cannot work. For the uncovered cases, we define an uncovered set and present that there is no method which is more powerful than ours for local discrimination of GBSs if the uncovered set is a subset of the different set of GBSs.
最大纠缠态的单向 LOCC 不可区分性
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发表时间: 2014-03
影响因子: 2.5
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影响因子: 4.6
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