Universal Trimers Induced by Spin-Orbit Coupling in Ultracold Fermi Gases

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	Universal Trimers Induced by Spin-Orbit Coupling in Ultracold Fermi Gases
	Shi, ZY ; Cui, XL ; Zhai, H
刊名	PHYSICAL REVIEW LETTERS
	2014
卷号	112 期号:1
ISSN号	0031-9007
通讯作者	Shi, ZY (reprint author), Tsinghua Univ, Inst Adv Study, Beijing 100084, Peoples R China.
中文摘要	In this Letter we address the issue of how synthetic spin-orbit (SO) coupling can strongly affect three-body physics in ultracold atomic gases. We consider a system which consists of three fermionic atoms, including two spinless heavy atoms and one spin-1/2 light atom subjected to an isotropic SO coupling. We find that SO coupling can induce universal three-body bound states with a negative s-wave scattering length at a smaller mass ratio, where no trimer bound state can exist if in the absence of SO coupling. The energies of these trimers are independent of the high-energy cutoff, and therefore they are universal ones. Moreover, the resulting atom-dimer resonance can be effectively controlled by SO coupling strength. Our results can be applied to systems like a Li-6 and K-40 mixture.
资助信息	Tsinghua University Initiative Scientific Research Program, Chinese Academy of Sciences; NSFC [11004118, 11174176, 11325418, 11104158, 11374177]; NKBRSFC [2011CB921500]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59594]
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	Shi, ZY,Cui, XL,Zhai, H. Universal Trimers Induced by Spin-Orbit Coupling in Ultracold Fermi Gases[J]. PHYSICAL REVIEW LETTERS,2014,112(1).
APA	Shi, ZY,Cui, XL,&Zhai, H.(2014).Universal Trimers Induced by Spin-Orbit Coupling in Ultracold Fermi Gases.PHYSICAL REVIEW LETTERS,112(1).
MLA	Shi, ZY,et al."Universal Trimers Induced by Spin-Orbit Coupling in Ultracold Fermi Gases".PHYSICAL REVIEW LETTERS 112.1(2014).