Minimum output entropy of a Gaussian Bosonic channel

被引：0

作者：

Giovannetti, V

Maccone, L

Guha, S

Lloyd, S

Shapiro, JH

Yen, BJ

机构：

[1] INFM, NEST, I-56126 Pisa, Italy

[2] Scuola Normale Super Pisa, I-56126 Pisa, Italy

[3] Univ Pavia, QUIT, Dipartimento Fis A Volta, I-27100 Pavia, Italy

[4] MIT, Elect Res Lab, Cambridge, MA 02139 USA

来源：

INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2005年 / 3卷 / 01期

关键词：

quantum channels; entropy; additivity; capacity; Bosonic channels;

D O I：

10.1142/S0219749905000657

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

The entropy at the output of a Bosonic channel is analyzed when coherent fields are randomly added to the signal. Coherent-state inputs are conjectured to provide the minimum output entropy. Supporting physical and mathematical evidence is provided.

引用

页码：153 / 158

页数：6

共 18 条

[1]

Amosov G. G., 2000, Problems of Information Transmission, V36, P305

[2] Quantum information theory [J].

Bennett, CH ;

Shor, PW .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1998, 44 (06) :2724-2742

[3] Classical phase-space descriptions of continuous-variable teleportation -: art. no. 040506 [J].

Caves, CM ;

Wódkiewicz, K .

PHYSICAL REVIEW LETTERS, 2004, 93 (04) :040506-1

[4] QUANTUM LIMITS ON BOSONIC COMMUNICATION RATES [J].

CAVES, CM ;

DRUMMOND, PD .

REVIEWS OF MODERN PHYSICS, 1994, 66 (02) :481-537

[5] Additivity properties of a Gaussian channel [J].

Giovannetti, V ;

Lloyd, S .

PHYSICAL REVIEW A, 2004, 69 (06) :062307-1

[6] Minimum Renyi and Wehrl entropies at the output of bosonic channels [J].

Giovannetti, V ;

Lloyd, S ;

Maccone, L ;

Shapiro, JH ;

Yen, BJ .

PHYSICAL REVIEW A, 2004, 70 (02) :022328-1

[7] Minimum output entropy of bosonic channels: A conjecture [J].

Giovannetti, V ;

Guha, S ;

Lloyd, S ;

Maccone, L ;

Shapiro, JH .

PHYSICAL REVIEW A, 2004, 70 (03) :032315-1

[8] GAUSSIAN-NOISE AND QUANTUM-OPTICAL COMMUNICATION [J].

HALL, MJW .

PHYSICAL REVIEW A, 1994, 50 (04) :3295-3303

[9] REALISTIC PERFORMANCE OF THE MAXIMUM INFORMATION CHANNEL [J].

HALL, MJW ;

OROURKE, MJ .

QUANTUM OPTICS, 1993, 5 (03) :161-180

[10] Classical information capacity of a quantum channel [J].

Hausladen, P ;

Jozsa, R ;

Schumacher, B ;

Westmoreland, M ;

Wootters, WK .

PHYSICAL REVIEW A, 1996, 54 (03) :1869-1876

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