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论文类型：期刊论文

发表时间：2012-05-15

发表刊物：JOURNAL OF APPLIED PHYSICS

收录刊物：SCIE、EI

卷号：111

期号：10

ISSN号：0021-8979

摘要：A scheme to generate stationary entanglement in a Fabry-Perot cavity with two-level atoms is proposed in the current paper. The mechanism through which radiation pressure can generate steady-state entanglement is also presented. Moreover, the bipartite entanglement in the field-mirror subsystem is quantified. Logarithmic negativity, which characterizes the entanglement between the two systems, is found to increase from 0.27 to 0.32 with the help of the atoms. Surprisingly, such macroscopic entanglement persists for environment temperatures of about 25 K in this system. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4719075]