Local distinguishability of Bell-type states

被引:1
作者
Zaman, Fakhar [1 ]
Hong, Een-Kee [1 ]
Shin, Hyundong [1 ]
机构
[1] Kyung Hee Univ, Dept Elect & Informat Convergence Engn, Yongin 17104, South Korea
基金
新加坡国家研究基金会;
关键词
Counterfactual quantum communication; Quantum entanglement; LOCC; QUANTUM; DISCRIMINATION; DIFFERENTIATE;
D O I
10.1007/s11128-021-03114-z
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We consider the following scenario: a bipartite quantum state is prepared in one of the four Bell-type states. Each qubit is possessed by the spatially separated party, and the parties wish to distinguish between the four Bell-type states. To date, it is not possible to distinguish between the four orthonormal Bell-type states without entanglement-assisted discrimination by means of local operations and classical communication (LOCC). In this paper, we demonstrate the distinguishability of orthonormal Bell-type states with certainty by using LOCC, but no particle is exchanged between the two parties. We start with the local distinguishability of the orthogonal Bell-type states and generalize it for non-orthogonal Bell-type states with nonzero fidelity.
引用
收藏
页数:12
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