SU(3) spin-orbit coupled fermions in an optical lattice  

作　　者：Xiaofan Zhou Gang Chen Suo-Tang Jia 周晓凡;陈刚;贾锁堂(State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan 030006,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China;Collaborative Innovation Center of Light Manipulations and Applications,Shandong Normal University,Jinan 250358,China)

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan 030006,China [2]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China [3]Collaborative Innovation Center of Light Manipulations and Applications,Shandong Normal University,Jinan 250358,China

出　　处：《Chinese Physics B》2022年第1期504-510,共7页中国物理B（英文版）

基　　金：supported by the National Key R&D Program of China (Grant No. 2017YFA0304203);the Natural National Science Foundation of China (Grant Nos. 11674200, 12074232, and 12004230);the Fund for Shanxi ‘1331 Project’ Key Subjects Construction;Research Project Supported by Shanxi Scholarship Council of China

摘　　要：We propose a scheme to realize the SU(3)spin-orbit coupled three-component fermions in an one-dimensional optical lattice.The topological properties of the single-particle Hamiltonian are studied by calculating the Berry phase,winding number and edge state.We also investigate the effects of the interaction on the ground-state topology of the system,and characterize the interaction-induced topological phase transitions,using a state-of-the-art density-matrix renormalization-group numerical method.Finally,we show the typical features of the emerging quantum phases,and map out the many-body phase diagram between the interaction and the Zeeman field.Our results establish a way for exploring novel quantum physics induced by the SOC with SU(N)symmetry.

关 键 词：spin-orbit coupling topological phase transition optical lattice 

分 类 号：O469[理学—凝聚态物理]