Pauli cloning of a quantum bit

被引：219

作者：

Cerf, NJ

机构：

[1] Free Univ Brussels, Ecole Polytech, B-1050 Brussels, Belgium

[2] CALTECH, Jet Prop Lab, Informat & Comp Technol Res Sect, Pasadena, CA 91109 USA

[3] CALTECH, WK Kellogg Radiat Lab, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.84.4497

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A family of asymmetric quantum cloning machines is introduced that produce two approximate copies 8 MAY 2000 of a single quantum bit, each copy emerging from a Pauli channel. A no-cloning inequality is derived describing the balance between the quality of the copies. The Pauli cloning machine is also shown to put a limit on the quantum capacity of Pauli channels.

引用

页码：4497 / 4500

页数：4

共 10 条

[1]

Bennett CH, 1996, PHYS REV A, V54, P3824, DOI 10.1103/PhysRevA.54.3824

[2] Optimal universal and state-dependent quantum cloning [J].

Bruss, D ;

DiVincenzo, DP ;

Ekert, A ;

Fuchs, CA ;

Macchiavello, C ;

Smolin, JA .

PHYSICAL REVIEW A, 1998, 57 (04) :2368-2378

[3] Quantum copying: A network [J].

Buzek, V ;

Braunstein, SL ;

Hillery, M ;

Bruss, D .

PHYSICAL REVIEW A, 1997, 56 (05) :3446-3452

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

Buzek, V ;

Hillery, M .

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

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

DIEKS, D .

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

[6] ENTANGLED QUANTUM-SYSTEMS AND THE SCHMIDT DECOMPOSITION [J].

EKERT, A ;

KNIGHT, PL .

AMERICAN JOURNAL OF PHYSICS, 1995, 63 (05) :415-423

[7] Optimal quantum cloning machines [J].

Gisin, N ;

Massar, S .

PHYSICAL REVIEW LETTERS, 1997, 79 (11) :2153-2156

[8] Quantum cloning, eavesdropping and Bell's inequality [J].

Gisin, N ;

Huttner, B .

PHYSICS LETTERS A, 1997, 228 (1-2) :13-21

[9] Optimal copying of one quantum bit [J].

Niu, CS ;

Griffiths, RB .

PHYSICAL REVIEW A, 1998, 58 (06) :4377-4393

[10] A SINGLE QUANTUM CANNOT BE CLONED [J].

WOOTTERS, WK ;

ZUREK, WH .

NATURE, 1982, 299 (5886) :802-803

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