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发表时间：2019-03-09

论文类型：期刊论文

发表时间：2010-09-01

发表刊物：INTERNATIONAL JOURNAL OF QUANTUM INFORMATION

收录刊物：SCIE

卷号：8

期号：6

页面范围：937-945

ISSN号：0219-7499

关键字：Quantum entanglement; quantum computation; molecular vibrational and rotational levels

摘要：We studied the dynamics of entanglement in ultra-cold heteronuclear diatomic rovibrational molecules driven by an infrared laser field. Environment-induced spontaneous emission is considered. Numerical results show that the resonant external field and damping processes can bring into equilibrium and the disentanglement can be suppressed evidently. Appropriate intensity of far detuned pulses can also suppress disentanglement and produce some entanglement if there is initially separable state, but damping processes and interaction via polarizability dominate the disentanglement, leading to the vanishing of entanglement after a long time.