Peculiarities of quantum discord's geometric measure

被引：10

作者：

Batle, J. ^{[1
,2
]}

Plastino, A. ^{[1
,2
,3
]}

Plastino, A. R. ^{[4
,5
]}

Casas, M. ^{[1
,2
]}

机构：

[1] Univ Illes Balears, Dept Fis, Palma de Mallorca 07122, Spain

[2] Univ Illes Balears, IFISC, Palma de Mallorca 07122, Spain

[3] Natl Univ La Plata, IFLP CCT CONICET, RA-1900 La Plata, Argentina

[4] Natl Univ La Plata, CREG UNLP CONICET, RA-1900 La Plata, Argentina

[5] Univ Granada, Inst Carlos Fis Teor & Computac 1, Granada, Spain

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2011年 / 44卷 / 50期

关键词：

STATISTICAL-MECHANICS; XY-MODEL; ENTANGLEMENT; VOLUME; SET;

D O I：

10.1088/1751-8113/44/50/505304

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Some properties of the quantum discord based on the geometric measure advanced by Dakic et al (2010 Phys. Rev. Lett. 105 190502) are discussed here by recourse to a systematic survey of the two-qubit state-space, with emphasis on Werner and MEM states. We explore the dependence of quantum discord on the degree of mixedness of the bipartite states, and also its connection with non-locality as measured by the maximum violation of a Bell inequality within the CHSH scenario. Some considerations regarding the XY model are also made.

引用

页数：13

共 50 条

[1] Geometric measure of quantum discord
Luo, Shunlong
Fu, Shuangshuang
[J]. PHYSICAL REVIEW A, 2010, 82 (03):
[2] Evaluating the geometric measure of quantum discord
Shunlong Luo
Shuangshuang Fu
[J]. Theoretical and Mathematical Physics, 2012, 171 : 870 - 878
[3] Evaluating the geometric measure of quantum discord
Luo, Shunlong
Fu, Shuangshuang
[J]. THEORETICAL AND MATHEMATICAL PHYSICS, 2012, 171 (03) : 870 - 878
[4] Geometric measure of quantum discord with weak measurements
Lei Li
Qing-Wen Wang
Shu-Qian Shen
Ming Li
[J]. Quantum Information Processing, 2016, 15 : 291 - 300
[5] A symmetric geometric measure and the dynamics of quantum discord
蒋峰建
吕海江
闫新虎
石名俊
[J]. Chinese Physics B, 2013, (04) : 94 - 102
[6] Geometric measure of quantum discord with weak measurements
Li, Lei
Wang, Qing-Wen
Shen, Shu-Qian
Li, Ming
[J]. QUANTUM INFORMATION PROCESSING, 2016, 15 (01) : 291 - 300
[7] Witnessed entanglement and the geometric measure of quantum discord
Debarba, Tiago
Maciel, Thiago O.
Vianna, Reinaldo O.
[J]. PHYSICAL REVIEW A, 2012, 86 (02):
[8] GEOMETRIC MEASURE OF QUANTUM DISCORD UNDER DECOHERENCE
Lu, Xiao-Ming
Xi, Zhengjun
Sun, Zhe
Wang, Xiaoguang
[J]. QUANTUM INFORMATION & COMPUTATION, 2010, 10 (11-12) : 994 - 1003
[9] A symmetric geometric measure and the dynamics of quantum discord
Jiang Feng-Jian
Lu Hai-Jiang
Yan Xin-Hu
Shi Ming-Jun
[J]. CHINESE PHYSICS B, 2013, 22 (04)
[10] Comment on "Witnessed entanglement and the geometric measure of quantum discord"
Rana, Swapan
Parashar, Preeti
[J]. PHYSICAL REVIEW A, 2013, 87 (01):

← 1 2 3 4 5 →