Decay rate and decoherence control in coupled dissipative cavities

被引:13
|
作者
de Magalhaes, ARB
Mokarzel, SG
Nemes, MC
Cunha, MOT
机构
[1] Univ Fed Minas Gerais, Dept Matemat, BR-30123970 Belo Horizonte, MG, Brazil
[2] Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil
[3] Pontificia Univ Catolica Sao Paulo, Dept Fis, Sao Paulo, Brazil
关键词
decoherence; quantum information; decoherence-free subspaces; cavity quantum electrodynamics;
D O I
10.1016/j.physa.2004.03.096
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We give a detailed account of the derivation of a master equation for two-coupled cavities in the presence of dissipation. The analytical solution is presented and physical limits of interest are discussed. Firstly, we show that the decay rate of initial coherent states can be significantly modified if the two cavities have different decay rates and are weakly coupled through a wire. Moreover, we show that also decoherence rates can be substantially altered by manipulation of physical parameters. Conditions for experimental realizations are discussed. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:234 / 250
页数:17
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