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论文类型：期刊论文

发表时间：2013-06-01

发表刊物：EUROPEAN PHYSICAL JOURNAL D

收录刊物：SCIE、Scopus

卷号：67

期号：6

ISSN号：1434-6060

摘要：We present a scheme using a single four-level atom to entangle two mesoscopic mirrors. If the coupling between the cavity fields and the atom is suitable, then our study shows entanglement between the two movable mirrors, between the two-mode fields, and also between the mirror and the distant cavity mode. Because the energy difference between the two lowest levels of the four-level atom is not negligible, the entanglement of the mirrors as well as the squeezing spectrum of the output cavity fields display a splitting phenomenon. In the present scheme, only a single trapped atom is used, which sheds new light on the use of microscopic atomic coherence for the production of mesoscopic entanglement.