Entanglement-enhanced information transmission over a quantum channel with correlated noise

被引：231

作者：

Macchiavello, C

Palma, GM

机构：

[1] Ist Nazl Fis Mat, I-27100 Pavia, Italy

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

[3] Ist Nazl Fis Mat, NEST, I-90123 Palermo, Italy

[4] Dipartimento Sci Fis & Astron, I-90123 Palermo, Italy

来源：

PHYSICAL REVIEW A | 2002年 / 65卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.65.050301

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show that entanglement is a useful resource to enhance the mutual information of the depolarizing channel when the noise on consecutive uses of the channel has some partial correlations. We obtain a threshold in the degree of memory above which a higher amount of classical information is transmitted with entangled signals.

引用

页数：4

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