Mixture of Tonks-Girardeau gas and Fermi gas in one-dimensional optical lattices

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	Mixture of Tonks-Girardeau gas and Fermi gas in one-dimensional optical lattices
	Chen, S ; Cao, JP ; Gu, SJ
刊名	PHYSICAL REVIEW A
	2010
卷号	82 期号:5
关键词	ULTRACOLD ATOMS TRANSITION BOSONS MODEL
ISSN号	1050-2947
通讯作者	Chen, S: Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	We study the Bose-Fermi mixture with infinite boson-boson repulsion and finite boson-fermion repulsion. Using a generalized Jordan-Wigner transformation, we show that the system can be mapped to a repulsive Hubbard model and thus can be solved exactly for the case with equal boson and fermion masses. Using the Bethe-ansatz solutions, we investigate the ground-state properties of the mixture system. Our results indicate that the system with commensurate filling n = 1 is a charge insulator but still a superfluid with nonvanishing superfluid density. We also briefly discuss the case with unequal boson and fermion masses.
收录类别	SCI
资助信息	NSF of China [10974234, 10821403, 10974233, 10934010]; MOST China [2010CB922904]; Research Grants Council of HKSAR, China [CUHK 401108]
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/42181]
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	Chen, S,Cao, JP,Gu, SJ. Mixture of Tonks-Girardeau gas and Fermi gas in one-dimensional optical lattices[J]. PHYSICAL REVIEW A,2010,82(5).
APA	Chen, S,Cao, JP,&Gu, SJ.(2010).Mixture of Tonks-Girardeau gas and Fermi gas in one-dimensional optical lattices.PHYSICAL REVIEW A,82(5).
MLA	Chen, S,et al."Mixture of Tonks-Girardeau gas and Fermi gas in one-dimensional optical lattices".PHYSICAL REVIEW A 82.5(2010).