Entanglement assisted capacity of the broadband lossy channel

被引：45

作者：

Giovannetti, V

Lloyd, S

Maccone, L

Shor, PW

机构：

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

[2] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[3] AT&T Labs Res, Florham Pk, NJ 07932 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.91.047901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We calculate the entanglement assisted capacity of a multimode bosonic channel with loss. As long as the efficiency of the channel is above 50%, the superdense coding effect can be used to transmit more bits than those that can be stored in the message sent down the channel. Bounds for the other capacities of the multimode channel are also provided.

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页数：4

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