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论文类型：期刊论文

发表时间：2010-09-01

发表刊物：JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS

收录刊物：SCIE、EI、Scopus

卷号：27

期号：9

页面范围：1799-1803

ISSN号：0740-3224

摘要：We discuss the creation of quantum discord between two two-level atoms trapped in an optical cavity in a noisy environment. It is shown that nonzero steady-state quantum discord between atoms can be obtained when the white-noise field is separately imposed on atoms or cavity mode, while the steady-state quantum discord reaches zero if both cavity mode and atoms are driven simultaneously by white-noise fields. In particular, we demonstrate that white-noise field in different cases can play a variously constructive role in the generation of quantum discord. (C) 2010 Optical Society of America