Renormalization-group analysis of p-orbital Bose-Einstein condensates in a square optical lattice

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	Renormalization-group analysis of p-orbital Bose-Einstein condensates in a square optical lattice
	Liu, BY ; Yu, XL ; Liu, WM
刊名	PHYSICAL REVIEW A
	2013
卷号	88 期号:6 页码:3605
ISSN号	1050-2947
通讯作者	Liu, Boyang (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
中文摘要	We investigate the quantum fluctuation effects in the vicinity of the critical point of a p-orbital bosonic system in a square optical lattice using the Wilsonian renormalization group, where the p-orbital bosons condense at nonzero momenta and display rich phases including both time-reversal symmetry invariant and broken Bose-Einstein condensation states. The one-loop renormalization-group analysis generates corrections to the mean-field phase boundaries. We also show the quantum fluctuations in the p-orbital system tend to induce the ordered phase but not destroy it via the Coleman-Weinberg mechanism, which is qualitatively different from the ordinary quantum fluctuation corrections to the mean-field phase boundaries in s-orbital systems. Finally, we discuss the observation of these phenomena in the realistic experiment.
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57396]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Liu, BY,Yu, XL,Liu, WM. Renormalization-group analysis of p-orbital Bose-Einstein condensates in a square optical lattice[J]. PHYSICAL REVIEW A,2013,88(6):3605.
APA	Liu, BY,Yu, XL,&Liu, WM.(2013).Renormalization-group analysis of p-orbital Bose-Einstein condensates in a square optical lattice.PHYSICAL REVIEW A,88(6),3605.
MLA	Liu, BY,et al."Renormalization-group analysis of p-orbital Bose-Einstein condensates in a square optical lattice".PHYSICAL REVIEW A 88.6(2013):3605.