Loss of entanglement after propagation in a quantum noisy channel modeled by a canonical unitary operation in two qubits

被引：3

作者：

de Brito, Wellington Alves ^{[1
]}

Ramos, Rubens Viana ^{[1
]}

机构：

[1] Fed Univ Ceara, Dept Teleinformat Engn, BR-60755640 Fortaleza, Ceara, Brazil

来源：

PHYSICS LETTERS A | 2006年 / 360卷 / 02期

关键词：

entanglement; canonical unitaries; quantum noisy channel;

D O I：

10.1016/j.physleta.2006.08.039

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this work, we analyze the loss of entanglement of bipartite states after propagation in a noisy channel modeled by the interaction between the bipartite state and the environment through a canonical unitary form of a two-qubit gate. An analytic expression for the entanglement loss is found. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：251 / 255

页数：5