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论文类型：期刊论文

发表时间：2016-08-01

发表刊物：INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS

收录刊物：SCIE、Scopus

卷号：55

期号：8

页面范围：3697-3705

ISSN号：0020-7748

关键字：Stationary entanglement; Coupled optomechanical cavities; Optical parametric amplifiers

摘要：A scheme to generate the stationary entanglement of two distant coupled optical cavities placed optical parametric amplifiers is proposed. We study how the optical parametric amplifiers can affect the entanglement behaviors of the movable mirrors and the cavity fields. With the existence of optical parametric amplifiers, we show that larger stationary entanglement of optical and mechanical modes can be obtained and the entanglement increases with the increasing parametric gain. Especially, the degree of entanglement between the two cavity fields is more pronouncedly enhanced. Moreover, for a fixed parametric gain, the entanglement of distant cavity optomechanical systems increases as the input laser power is increased.