Decoherence Effects on the Generation of Exciton Entangled States in Coupled Quantum Dots
Decoherence Effects on the Generation of Exciton Entangled States in Coupled Quantum Dots
复制标题
退相干效应对耦合量子点中激子纠缠态产生的影响
DOI：
10.1002/1521-396x(200003)178:1
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
N. Johnson
中科院分区：
文献类型：
--
作者：
F. Rodríguez;L. Quiroga;N. Johnson
我们报道了N = 2和3量子点系统中激子-声-声子耦合对激子最大纠缠态产生的影响。特别是，我们解决了激光脉冲的联合效应问题，适合产生贝尔和格林伯格-霍恩-塞林格纠缠态，以及由声子库提供的退相干机制。通过数值求解光驱动激子-声子动力学的主方程，我们表明在一个合理的参数窗口内，最大纠缠激子态的产生是保留的。
We report on exciton-acoustic-phonon coupling effects on the generation of exciton maximally entangled states in N = 2 and 3 quantum dot systems. In particular, we address the question of the combined effect of laser pulses, appropriate for generating Bell and Greenberger-Horne-Zeilinger entangled states, together with decoherence mechanisms as provided by a phonon reservoir. By solving numerically the master equation for the optically driven exciton–phonon kinetics, we show that the generation of maximally entangled exciton states is preserved over a reasonable parameter window.