Optimality of minimum-error discrimination by the no-signaling condition

被引：12

作者：

Bae, Joonwoo ^{[1
]}

Lee, Jae-Weon ^{[1
]}

Kim, Jaewan ^{[1
]}

Hwang, Won-Young ^{[2
]}

机构：

[1] Korea Inst Adv Study, Sch Computat Sci, Seoul 130012, South Korea

[2] Chonnam Natl Univ, Dept Phys Educ, Kwangju 500757, South Korea

来源：

PHYSICAL REVIEW A | 2008年 / 78卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.78.022335

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work we relate the well-known no-go theorem that two nonorthogonal (mixed) quantum states cannot be perfectly discriminated, to the general principle in physics, the no-signaling condition. In fact, the minimum error in discrimination between two quantum states is derived from the no-signaling condition.

引用

页数：4

共 15 条

[1] Asymptotic quantum cloning is state estimation [J].

Bae, Joonwoo ;

Acin, Antonio .

PHYSICAL REVIEW LETTERS, 2006, 97 (03)

[2] Bound on measurement based on the no-signaling condition [J].

Barnett, SM ;

Andersson, E .

PHYSICAL REVIEW A, 2002, 65 (04) :3

[3]

Bruss D, 2000, PHYS REV A, V62, DOI [10.1103/PhysRevA.62.062302, 10.1103/PhysRevA.62.012302]

[4] Quantum copying: Beyond the no-cloning theorem [J].

Buzek, V ;

Hillery, M .

PHYSICAL REVIEW A, 1996, 54 (03) :1844-1852

[5] No-signaling bound on quantum state discrimination [J].

Croke, Sarah ;

Andersson, Erika ;

Barnett, Stephen M. .

PHYSICAL REVIEW A, 2008, 77 (01)

[6] COMMUNICATION BY ELECTRON-PARAMAGNETIC-RES DEVICES [J].

DIEKS, D .

PHYSICS LETTERS A, 1982, 92 (06) :271-272

[7]

GISIN N, 1989, HELV PHYS ACTA, V62, P363

[8] Quantum cloning without signaling [J].

Gisin, N .

PHYSICS LETTERS A, 1998, 242 (1-2) :1-3

[9]

Helstrom C.W., 1976, QUANTUM DETECTION ES

[10] A COMPLETE CLASSIFICATION OF QUANTUM ENSEMBLES HAVING A GIVEN DENSITY-MATRIX [J].

HUGHSTON, LP ;

JOZSA, R ;

WOOTTERS, WK .

PHYSICS LETTERS A, 1993, 183 (01) :14-18

← 1 2 →