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Unconventional Fulde-Ferrell-Larkin-Ovchinnikov pairing states in a Fermi gas with spin-orbit coupling
WU Fan 1,GUO Guangcan 2,ZHANG Wei 3,YI Wei 4 * #
1.Key Laboratory of Quantum Information, University of Science and Technology of China, HeFei 230026
2. Key Laboratory of Quantum Information, University of Science and Technology of China,
3.Department of Physics, Renmin University of China, Beijing 100872, People's Republic of China
4.Key Laboratory of Quantum Information, University of Science and Technology of China,
*Correspondence author
#Submitted by
Subject:
Funding: Specialized Research Fund for the Doctoral Program of Higher Education(No.No. 20113402120022)
Opened online:11 July 2013
Accepted by: none
Citation: WU Fan,GUO Guangcan,ZHANG Wei.Unconventional Fulde-Ferrell-Larkin-Ovchinnikov pairing states in a Fermi gas with spin-orbit coupling[OL]. [11 July 2013] http://en.paper.edu.cn/en_releasepaper/content/4549842
 
 
We study the phase diagram in a two-dimensional Fermi gas with the synthetic spin-orbit coupling that has recently been realized experimentally. In particular, we characterize in detail the properties and the stability region of the unconventional Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states in such a system, which are induced by spin-orbit coupling and Fermi surface asymmetry. We identify several distinct nodal FFLO states by studying the topology of their respective gapless contours in momentum space. Our studies provide detailed information on the FFLO pairing states with spin-orbit coupling and Fermi surface asymmetry, and will facilitate experimental detection of these interesting pairing state in the future.
Keywords:ultrcold atoms; spin-orbit coupling; FFLO state; quantum simulation
 
 
 

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