Measurement-induced geometric measures of correlations based on the trace distance for two-qubit X states

被引：1

作者：

Walczak, Zbigniew ^{[1
]}

Bauer, Jaroslaw H. ^{[1
]}

机构：

[1] Univ Lodz, Fac Phys & Appl Informat, Dept Theoret Phys, Pomorska 149-153, PL-90236 Lodz, Poland

来源：

QUANTUM INFORMATION PROCESSING | 2020年 / 19卷 / 07期

关键词：

Geometric measures of correlations; Classical and quantum correlations; Trace distance; Continuity of measures of correlations; X states; QUANTUM; ENTANGLEMENT;

D O I：

10.1007/s11128-020-02680-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We apply the modified Brodutch and Modi method of constructing geometric measures of correlations to obtain analytical expressions for measurement-induced geometric classical and quantum correlations based on the trace distance for two-qubit X states. Moreover, we study continuity of the classical and quantum correlations for these states. In particular, we show that these correlations may not be continuous.

引用

页数：17

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