Information transmission via entangled quantum states in Gaussian channels with memory

被引：4

作者：

Cerf, Nicolas J.

Clavareau, Julien

Roland, Jeremie

Macchiavello, Chiara

机构：

[1] Univ Libre Bruxelles, Ecole Polytech, QUIC, B-1050 Brussels, Belgium

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

来源：

INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2006年 / 4卷 / 03期

关键词：

quantum channel capacity; bosonic Gaussian channels;

D O I：

10.1142/S021974990600189X

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

Gaussian quantum channels have recently attracted a growing interest, since they may lead to a tractable approach to the generally hard problem of evaluating quantum channel capacities. However, the analysis performed so far has always been restricted to memoryless channels. Here, we consider the case of a bosonic Gaussian channel with memory, and show that the classical capacity can be significantly enhanced by employing entangled input symbols instead of product symbols.

引用

页码：439 / 452

页数：14

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