An Exotic Type of Fulde-Ferrel-Larkin-Ovchinnikov States in Spin-Orbit Coupled Condensates  

作　　者：韩强 刘佳 张旦波 汪子丹 

机构地区：[1]Department of Physics, Renmin University of China, Beijing 100872 [2]Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road Hong Kong [3]Beijing Key Laboratory of Opto-electronie Functional Materials and Micro-nano Devices, Renmin University of China, Beijing 100872

出　　处：《Chinese Physics Letters》2014年第5期161-164,共4页中国物理快报（英文版）

基　　金：Supported by the Research Grants Council of Hong Kong under Grant Nos HKU7055/09P and HKUT058/11P, the Collaborative Research Fund of Hong Kong, the National Natural Science Foundation of China under Grant No 11274379, the State Key Program for Basic Research of China under Grant No 2011CB922104, the Fundamental Research Funds for the Central Universities, and the Research Funds of Renmin University of China under Grant No 14XNLQ07.

摘　　要：We find for the first time that a model Hamiltonian or s-wave superconductors in tne presence or spm-orbit interactions and a Zeeman field is exactly solvable. Most intriguingly, based on the exact solutions, a novel type of Fulde Ferrel-Larkin-Ovchinnikov ground state is rigorously revealed, in which the center-of-mass momentum of the fermion pair is proportional to the Zeeman field. We also generalize our exact analysis to the spin-orbit- coupled Bose-Einstein condensate.We find for the first time that a model Hamiltonian or s-wave superconductors in tne presence or spm-orbit interactions and a Zeeman field is exactly solvable. Most intriguingly, based on the exact solutions, a novel type of Fulde Ferrel-Larkin-Ovchinnikov ground state is rigorously revealed, in which the center-of-mass momentum of the fermion pair is proportional to the Zeeman field. We also generalize our exact analysis to the spin-orbit- coupled Bose-Einstein condensate.

分 类 号：O4[理学—物理] U260.111[机械工程—车辆工程]