Quantum coherence and correlations in quantum system

被引:234
作者
Xi, Zhengjun [1 ]
Li, Yongming [1 ]
Fan, Heng [2 ,3 ]
机构
[1] Shaanxi Normal Univ, Coll Comp Sci, Xian 710062, Peoples R China
[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
[3] Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China
关键词
ENTANGLEMENT; INFORMATION; DISCORD;
D O I
10.1038/srep10922
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Criteria of measure quantifying quantum coherence, a unique property of quantum system, are proposed recently. In this paper, we first give an uncertainty-like expression relating the coherence and the entropy of quantum system. This finding allows us to discuss the relations between the entanglement and the coherence. Further, we discuss in detail the relations among the coherence, the discord and the deficit in the bipartite quantum system. We show that, the one-way quantum deficit is equal to the sum between quantum discord and the relative entropy of coherence of measured subsystem.
引用
收藏
页数:9
相关论文
共 37 条
[1]   Catalytic Coherence [J].
Aberg, Johan .
PHYSICAL REVIEW LETTERS, 2014, 113 (15)
[2]  
Aberg Johan, ARXIV0612146V1
[3]   Entanglement in many-body systems [J].
Amico, Luigi ;
Fazio, Rosario ;
Osterloh, Andreas ;
Vedral, Vlatko .
REVIEWS OF MODERN PHYSICS, 2008, 80 (02) :517-576
[4]  
Angelo R. M., ARXIV13042286
[5]   Quantifying Coherence [J].
Baumgratz, T. ;
Cramer, M. ;
Plenio, M. B. .
PHYSICAL REVIEW LETTERS, 2014, 113 (14)
[6]   Purification of noisy entanglement and faithful teleportation via noisy channels [J].
Bennett, CH ;
Brassard, G ;
Popescu, S ;
Schumacher, B ;
Smolin, JA ;
Wootters, WK .
PHYSICAL REVIEW LETTERS, 1996, 76 (05) :722-725
[7]   Quantum Discord Bounds the Amount of Distributed Entanglement [J].
Chuan, T. K. ;
Maillard, J. ;
Modi, K. ;
Paterek, T. ;
Paternostro, M. ;
Piani, M. .
PHYSICAL REVIEW LETTERS, 2012, 109 (07)
[8]   Quantum phases with differing computational power [J].
Cui, Jian ;
Gu, Mile ;
Kwek, Leong Chuan ;
Santos, Marcelo Franca ;
Fan, Heng ;
Vedral, Vlatko .
NATURE COMMUNICATIONS, 2012, 3
[9]   Colloquium: Area laws for the entanglement entropy [J].
Eisert, J. ;
Cramer, M. ;
Plenio, M. B. .
REVIEWS OF MODERN PHYSICS, 2010, 82 (01) :277-306
[10]   Observable Measure of Quantum Coherence in Finite Dimensional Systems [J].
Girolami, Davide .
PHYSICAL REVIEW LETTERS, 2014, 113 (17)