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

被引：0
|
作者：
Zhou, Xiaofan [1 ,2 ]
Chen, Gang [1 ,2 ,3 ]
Jia, Suo-Tang [1 ,2 ]
机构：
[1] Shanxi Univ, Inst Laser Spect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China
[2] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China
[3] Shandong Normal Univ, Collaborat Innovat Ctr Light Manipulat & Applicat, Jinan 250358, Peoples R China
来源：
CHINESE PHYSICS B | 2022年 / 31卷 / 01期
基金：
美国国家科学基金会; 国家重点研发计划;
关键词：
spin-orbit coupling; topological phase transition; optical lattice; EDGE STATES; PHASE; REALIZATION; INSULATOR; GAS;
D O I：
10.1088/1674-1056/ac11dc
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
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.
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页数：7
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