Quantifying the resource of sharing a reference frame

被引：33

作者：

van Enk, SJ

机构：

[1] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

[2] CALTECH, Inst Quantum Informat, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW A | 2005年 / 71卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.71.032339

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We define a quantity called a refbit, which allows one to quantify the resource of sharing a reference frame in quantum communication protocols. By considering both asymptotic and nonasymptotic protocols we find relations between refbits and other communication resources. We also consider the same resources in encoded, reference-frame-independent, form. This allows one to rephrase and unify previous work on phase references, reference frames, and superselection rules.

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页数：8

相关论文

共 23 条

[1] Aligning reference frames with quantum states -: art. no. 257903 [J].

Bagan, E ;

Baig, M ;

Muñoz-Tapia, R .

PHYSICAL REVIEW LETTERS, 2001, 87 (25) :257903-1

[2] Decoherence-full subsystems and the cryptographic power of a private shared reference frame [J].

Bartlett, SD ;

Rudolph, T ;

Spekkens, RW .

PHYSICAL REVIEW A, 2004, 70 (03) :032307-1

[3] Classical and quantum communication without a shared reference frame [J].

Bartlett, SD ;

Rudolph, T ;

Spekkens, RW .

PHYSICAL REVIEW LETTERS, 2003, 91 (02)

[4] Unambiguous state discrimination in quantum cryptography with weak coherent states -: art. no. 022306 [J].

Dusek, M ;

Jahma, M ;

Lütkenhaus, N .

PHYSICAL REVIEW A, 2000, 62 (02) :9

[5] Unconditional quantum teleportation [J].

Furusawa, A ;

Sorensen, JL ;

Braunstein, SL ;

Fuchs, CA ;

Kimble, HJ ;

Polzik, ES .

SCIENCE, 1998, 282 (5389) :706-709

[6] Spin flips and quantum information for antiparallel spins [J].

Gisin, N ;

Popescu, S .

PHYSICAL REVIEW LETTERS, 1999, 83 (02) :432-435

[7] Coherent communication of classical messages [J].

Harrow, A .

PHYSICAL REVIEW LETTERS, 2004, 92 (09) :097902-1

[8] Superselection rules and quantum protocols [J].

Kitaev, A ;

Mayers, D ;

Preskill, J .

PHYSICAL REVIEW A, 2004, 69 (05) :052326-1

[9] OPTIMAL EXTRACTION OF INFORMATION FROM FINITE QUANTUM ENSEMBLES [J].

MASSAR, S ;

POPESCU, S .

PHYSICAL REVIEW LETTERS, 1995, 74 (08) :1259-1263

[10] Transmission of a Cartesian frame by a quantum system [J].

Peres, A ;

Scudo, PF .

PHYSICAL REVIEW LETTERS, 2001, 87 (16) :1-167901