Three qubits in a symmetric environment: Dissipatively generated asymptotic entanglement

被引：8

作者：

Benatti, Fabio ^{[1
,2
]}

Adam Nagy ^{[3
]}

机构：

[1] Univ Trieste, Dipartmento Fis, I-34051 Trieste, Italy

[2] Ist Nazl Fis Nucl, Sez Trieste, I-34100 Trieste, Italy

[3] Budapest Univ Technol & Econ, Budapest, Hungary

来源：

ANNALS OF PHYSICS | 2011年 / 326卷 / 03期

关键词：

Entanglement; Open quantum systems; Asymptotic states; QUANTUM DYNAMICAL SEMIGROUPS; EQUILIBRIUM; SYSTEMS;

D O I：

10.1016/j.aop.2010.09.006

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the asymptotic entanglement of three identical qubits under the action of a Markovian open system dynamics that does not distinguish them. We show that by adding a completely depolarized qubit to a special class of two-qubit states, by letting them reach the asymptotic state and by finally eliminating the added qubit, can provide more entanglement than by direct immersion of the two qubits within the same environment. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：740 / 753

页数：14

共 24 条

[1]

Alicki R., 1987, Lecture Notes in Physics

[2]

ANGELAKIS DG, ARXIV09062168

[3] Analysis of quantum semigroups with GKS-Lindblad generators: II. General [J].