Quantum-capacity bounds in spin-network communication channels

被引：6

作者：

Chessa, Stefano ^{[1
]}

Fanizza, Marco

Giovannetti, Vittorio

机构：

[1] Scuola Normale Super Pisa, NEST, I-56126 Pisa, Italy

来源：

PHYSICAL REVIEW A | 2019年 / 100卷 / 03期

关键词：

CLASSICAL CAPACITY; CONTINUITY;

D O I：

10.1103/PhysRevA.100.032311

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using the Lieb-Robinson inequality and the continuity property of the quantum capacities in terms of the diamond norm, we derive an upper bound on the values that these capacities can attain in spin-network communication i.i.d. models of arbitrary topology. Different from previous results we make no assumptions about the encoding mechanisms that the sender of the messages adopts in loading information on the network.

引用

页数：8

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