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论文类型： 期刊论文

发表时间： 2010-02-01

发表刊物： EUROPEAN PHYSICAL JOURNAL D

收录刊物： SCIE

卷号： 56

期号： 3

页面范围： 435-440

ISSN号： 1434-6060

摘要： We study the effect of feedback control on the entanglement evolution of two spins in a dissipative cavity governed by the Lindblad master equation. By numerically solving the master equation, we show that the entanglement can be controlled by the feedback based on the quantum jumps of the field in a leaking cavity. With the feedback added to the spins, the stable states with high degree of entanglement can be obtained in absence of the spontaneous decay of the spins, and the entanglement can also be generated for a period in presence of spontaneous decay of the spins. All the controlled entangled states are closely related to the initial states.