Density operator description of atomic ordered spatial modes in cavity   QED

doi:10.1016/j.optcom.2013.05.043

CORC > 北京大学 > 信息科学技术学院

	Density operator description of atomic ordered spatial modes in cavity QED
	Fang, Zhen ; Yang, Baoguo ; Chen, Xuzong ; Zhou, Xiaoji
刊名	optics communications
	2013
关键词	Atomic spatial modes Mixed state density operator Interaction between atoms and cavity modes Quantum Monte-Carlo wave function approach QUANTUM PHASE-TRANSITION BOSE-EINSTEIN CONDENSATE OPTICAL LATTICES SELF-ORGANIZATION ULTRACOLD ATOMS SCATTERING SUPERFLUID GAS
DOI	10.1016/j.optcom.2013.05.043
英文摘要	We present a quantum Monte-Carlo simulation for a pumped atom in a strong coupling cavity with dissipation, where two ordered spatial modes are formed for the atomic probability density, with the peaks distributed either only in the odd sites or only in the even ones of the lattice formed by the cavity field. A mixed state density operator model, which describes the coupling between different atomic spatial modes and the corresponding cavity field components, is proposed, which goes beyond the pure state interpretation. We develop a new decomposition treatment to derive the atomic spatial modes as well as the cavity field statistics from the simulation results for the steady state. With this treatment, we also investigate the dynamical process for the probabilities of the atomic spatial modes in the adiabatic limit. According to the analysis of the fitting error between the simulation results and the density operator model, the latter is a good description for the system. (C) 2013 Elsevier B.V. All rights reserved.; Optics; SCI(E); EI; 0; ARTICLE; 83-89; 306
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/152245]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Fang, Zhen,Yang, Baoguo,Chen, Xuzong,et al. Density operator description of atomic ordered spatial modes in cavity QED[J]. optics communications,2013.
APA	Fang, Zhen,Yang, Baoguo,Chen, Xuzong,&Zhou, Xiaoji.(2013).Density operator description of atomic ordered spatial modes in cavity QED.optics communications.
MLA	Fang, Zhen,et al."Density operator description of atomic ordered spatial modes in cavity QED".optics communications (2013).