Super-Tonks-Girardeau Gas of Spin-1/2 Interacting Fermions

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	Super-Tonks-Girardeau Gas of Spin-1/2 Interacting Fermions
	Guan, LM ; Chen, S
刊名	PHYSICAL REVIEW LETTERS
	2010
卷号	105 期号:17
关键词	IMPENETRABLE BOSONS ULTRACOLD ATOMS ONE DIMENSION QUANTUM GAS PHYSICS PHASE
ISSN号	0031-9007
通讯作者	Guan, LM (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	Fermi gases confined in tight one-dimensional waveguides form two-particle bound states of atoms in the presence of a strongly attractive interaction. Based on the exact solution of the one-dimensional spin-1/2 interacting Fermi gas, we demonstrate that a stable excited state with no pairing between attractive fermionic atoms can be realized by a sudden switch of interaction from the strongly repulsive regime to strongly attractive regime. Such a state is an exact fermionic analog of the experimentally observed super-Tonks-Girardeau state of bosonic Cesium atoms [Science 325, 1224 ( 2009)] and should be possible to be observed by the experiment. The frequency of the lowest breathing mode of the fermionic super-Tonks-Girardeau gas is calculated as a function of the interaction strength, which could be used as a detectable signature for the experimental observation.
收录类别	SCI
资助信息	NSF of China [10974234, 10821403]; MOST
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/54133]
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	Guan, LM,Chen, S. Super-Tonks-Girardeau Gas of Spin-1/2 Interacting Fermions[J]. PHYSICAL REVIEW LETTERS,2010,105(17).
APA	Guan, LM,&Chen, S.(2010).Super-Tonks-Girardeau Gas of Spin-1/2 Interacting Fermions.PHYSICAL REVIEW LETTERS,105(17).
MLA	Guan, LM,et al."Super-Tonks-Girardeau Gas of Spin-1/2 Interacting Fermions".PHYSICAL REVIEW LETTERS 105.17(2010).