Contact Theory for Spin-Orbit-Coupled Fermi Gases

doi:10.1103/PhysRevLett.120.060408

	Contact Theory for Spin-Orbit-Coupled Fermi Gases
	Peng, Shi-Guo 2; Zhang, Cai-Xia 2,4; Tan, Shina 1,3; Jiang, Kaijun 1,2
刊名	PHYSICAL REVIEW LETTERS
	2018-02-09
卷号	120 期号:6
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.120.060408
文献子类	Article
英文摘要	We develop the contact theory for spin-orbit-coupled Fermi gases. By using a perturbation method, we derive analytically the universal two-body behavior at short distance, which does not depend on the short-range details of interatomic potentials. We find that two new scattering parameters need to be introduced because of spin-orbit coupling, besides the traditional s-and p-wave scattering length (volume) and effective ranges. This is a general and unique feature for spin-orbit-coupled systems. Consequently, two new adiabatic energy relations with respect to the new scattering parameters are obtained, in which a new contact is involved because of spin-orbit coupling. In addition, we derive the asymptotic behavior of the large-momentum distribution, and find that the subleading tail is corrected by the new contact. This work paves the way for exploring the profound properties of spin-orbit-coupled many-body systems, according to two-body solutions.
WOS关键词	TOPOLOGICAL INSULATORS
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000424632100001
资助机构	NKRDP (National Key Research and Development Program)(2016YFA0301503) ; NKRDP (National Key Research and Development Program)(2016YFA0301503) ; NSFC(11474315 ; NSFC(11474315 ; U.S. National Science Foundation CAREER award(PHY-1352208) ; U.S. National Science Foundation CAREER award(PHY-1352208) ; 11674358 ; 11674358 ; 11434015 ; 11434015 ; 91336106) ; 91336106) ; NKRDP (National Key Research and Development Program)(2016YFA0301503) ; NKRDP (National Key Research and Development Program)(2016YFA0301503) ; NSFC(11474315 ; NSFC(11474315 ; U.S. National Science Foundation CAREER award(PHY-1352208) ; U.S. National Science Foundation CAREER award(PHY-1352208) ; 11674358 ; 11674358 ; 11434015 ; 11434015 ; 91336106) ; 91336106) ; NKRDP (National Key Research and Development Program)(2016YFA0301503) ; NKRDP (National Key Research and Development Program)(2016YFA0301503) ; NSFC(11474315 ; NSFC(11474315 ; U.S. National Science Foundation CAREER award(PHY-1352208) ; U.S. National Science Foundation CAREER award(PHY-1352208) ; 11674358 ; 11674358 ; 11434015 ; 11434015 ; 91336106) ; 91336106) ; NKRDP (National Key Research and Development Program)(2016YFA0301503) ; NKRDP (National Key Research and Development Program)(2016YFA0301503) ; NSFC(11474315 ; NSFC(11474315 ; U.S. National Science Foundation CAREER award(PHY-1352208) ; U.S. National Science Foundation CAREER award(PHY-1352208) ; 11674358 ; 11674358 ; 11434015 ; 11434015 ; 91336106) ; 91336106)
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/12860]
专题	中国科学院武汉物理与数学研究所
通讯作者	Tan, Shina; Jiang, Kaijun
作者单位	1.Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Hubei, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China 3.Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA 4.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Peng, Shi-Guo,Zhang, Cai-Xia,Tan, Shina,et al. Contact Theory for Spin-Orbit-Coupled Fermi Gases[J]. PHYSICAL REVIEW LETTERS,2018,120(6).
APA	Peng, Shi-Guo,Zhang, Cai-Xia,Tan, Shina,&Jiang, Kaijun.(2018).Contact Theory for Spin-Orbit-Coupled Fermi Gases.PHYSICAL REVIEW LETTERS,120(6).
MLA	Peng, Shi-Guo,et al."Contact Theory for Spin-Orbit-Coupled Fermi Gases".PHYSICAL REVIEW LETTERS 120.6(2018).