Noise enhancing the classical information capacity of a quantum channel

被引：11

作者：

Bowen, G

Mancini, S ^{[1
]}

机构：

[1] Univ Camerino, INFM, I-62032 Camerino, Italy

[2] Univ Camerino, Dept Phys, I-62032 Camerino, Italy

[3] Univ Warwick, Dept Comp Sci, Coventry CV4 7AL, W Midlands, England

来源：

PHYSICS LETTERS A | 2004年 / 321卷 / 01期

关键词：

D O I：

10.1016/j.physleta.2003.11.058

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a simple model of quantum communication where a noisy quantum channel may benefit from the addition of further noise at the decoding stage. We demonstrate enhancement of the classical information capacity of an amplitude damping channel, with a predetermined detection threshold, by the addition of noise in the decoding measurement. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：1 / 5

页数：5

共 12 条

[1] Noise-enhanced capacity via stochastic resonance in an asymmetric binary channel [J].

ChapeauBlondeau, F .

PHYSICAL REVIEW E, 1997, 55 (02) :2016-2019

[2] Improving quantum interferometry by using entanglement [J].

D'Ariano, GM ;

Paris, MGA ;

Perinotti, P .

PHYSICAL REVIEW A, 2002, 65 (06) :9

[3]

DARIANO GM, 1997, QUANTUM OPTICS SPECT, P139

[4] Stochastic resonance [J].

Gammaitoni, L ;

Hanggi, P ;

Jung, P ;

Marchesoni, F .

REVIEWS OF MODERN PHYSICS, 1998, 70 (01) :223-287

[5] Brownian ratchets and Parrondo's games [J].

Harmer, GP ;

Abbott, D ;

Taylor, PG ;

Parrondo, JMR .

CHAOS, 2001, 11 (03) :705-714

[6]

Helstrom C., 1976, QUANTUM DETECTION ES

[7] Exploiting randomness in quantum information processing [J].

Lee, CF ;

Johnson, NF .

PHYSICS LETTERS A, 2002, 301 (5-6) :343-349

[8] Entanglement-enhanced information transmission over a quantum channel with correlated noise [J].

Macchiavello, C ;

Palma, GM .

PHYSICAL REVIEW A, 2002, 65 (05) :4

[9] Stochastic control of quantum coherence [J].

Mancini, S ;

Vitali, D ;

Tombesi, P ;

Bonifacio, R .

EUROPHYSICS LETTERS, 2002, 60 (04) :498-504

[10] Ponderomotive entangling of atomic motions [J].

Mancini, S ;

Bose, S .

PHYSICAL REVIEW A, 2001, 64 (03) :5-032308

← 1 2 →