Super fidelity and related metrics

被引：9

作者：

Chen, Zhi-Hua ^{[2
]}

Ma, Zhihao ^{[1
]}

Zhang, Fu-Lin ^{[3
]}

Chen, Jing-Ling ^{[4
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Math, Shanghai 200240, Peoples R China

[2] Zhejiang Univ Technol, Zhijiang Coll, Dept Sci, Hangzhou 310024, Zhejiang, Peoples R China

[3] Tianjin Univ, Dept Phys, Tianjin 300072, Peoples R China

[4] Nankai Univ, Chern Inst Math, Div Theoret Phys, Tianjin 300071, Peoples R China

来源：

CENTRAL EUROPEAN JOURNAL OF PHYSICS | 2011年 / 9卷 / 04期

关键词：

super-fidelity; metric; quantum state; QUANTUM STATES; ENTANGLEMENT; DISTANCE;

D O I：

10.2478/s11534-010-0123-8

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a new metric of quantum states. This metric is built up from super-fidelity, which has a deep connection with the Uhlmann-Jozsa fidelity and plays an important role in quantum information processing. We find that the new metric possesses some interesting properties.

引用

页码：1036 / 1042

页数：7

共 31 条

[1]

[Anonymous], 1991, TOPICS MATRIX ANAL, DOI DOI 10.1017/CBO9780511840371

[2] TRANSITION-PROBABILITY SPACES [J].

BELINFANTE, JGF .

JOURNAL OF MATHEMATICAL PHYSICS, 1976, 17 (03) :285-291

[3] Direct measurement of nonlinear properties of bipartite quantum states [J].

Bovino, FA ;

Castagnoli, G ;

Ekert, A ;

Horodecki, P ;

Alves, CM ;

Sergienko, AV .

PHYSICAL REVIEW LETTERS, 2005, 95 (24)

[4] Random quantum operations [J].

Bruzda, Wojciech ;

Cappellini, Valerio ;

Sommers, Hans-Juergen ;

Zyczkowski, Karol .

PHYSICS LETTERS A, 2009, 373 (03) :320-324

[5] Alternative fidelity measure between two states of an N-state quantum system -: art. no. 054304 [J].

Chen, JL ;

Fu, L ;

Ungar, AA ;

Zhao, XG .

PHYSICAL REVIEW A, 2002, 65 (05) :3-543043

[6] Entanglement of formation of bipartite quantum states [J].

Chen, K ;

Albeverio, S ;

Fei, SM .

PHYSICAL REVIEW LETTERS, 2005, 95 (21)

[7] Concurrence of arbitrary dimensional bipartite quantum states [J].

Chen, K ;

Albeverio, S ;

Fei, SM .

PHYSICAL REVIEW LETTERS, 2005, 95 (04)

[8]

Chuang I. N., 2000, Quantum Computation and Quantum Information

[9]

FUCHS CA, 1995, THESIS U NEW MEXICO

[10] Distance measures to compare real and ideal quantum processes [J].

Gilchrist, A ;

Langford, NK ;

Nielsen, MA .

PHYSICAL REVIEW A, 2005, 71 (06)

← 1 2 3 4 →