Improved transfer of quantum information using a local memory

被引：73

作者：

Giovannetti, V

Burgarth, D

机构：

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

[2] UCL, Dept Phys & Astron, London WC1E 6BT, England

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.96.030501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate that the quantum communication between two parties can be significantly improved if the receiver is allowed to store the received signals in a quantum memory before decoding them. In the limit of an infinite memory, the transfer is perfect. We prove that this scheme allows the transfer of arbitrary multipartite states along Heisenberg chains of spin-1/2 particles with random coupling strengths.

引用

页数：4

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