Adjustable half-skyrmion chains induced by SU(3)spin-orbit coupling in rotating Bose-Einstein condensates  

作　　者：Li Wang Ji Li Xiao-Lin Zhou Xiang-Rong Chen Wu-Ming Liu 王力;李吉;周晓林;陈向荣;刘伍明(College of Physics,Sichuan University,Chengdu 610065,China;College of Physics,Taiyuan Normal University,Jinzhong 030619,China;School of Physics and Electronic Engineering,Sichuan Normal University,Chengdu 610101,China;Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China;Songshan Lake Materials Laboratory,Dongguan 523808,China)

机构地区：[1]College of Physics,Sichuan University,Chengdu 610065,China [2]College of Physics,Taiyuan Normal University,Jinzhong 030619,China [3]School of Physics and Electronic Engineering,Sichuan Normal University,Chengdu 610101,China [4]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [5]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China [6]Songshan Lake Materials Laboratory,Dongguan 523808,China

出　　处：《Chinese Physics B》2021年第11期261-267,共7页中国物理B（英文版）

基　　金：Project supported by the National Key Research and Development Program of China(Grant No.2016YFA0301500);the National Natural Science Foundation of China(Grant Nos.61835013 and 11971067);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant Nos.XDB01020300 and XDB21030300);the Beijing Natural Science Foundation,China(Grant No.1182009);the Beijing Great Wall Talents Cultivation Program(Grant No.CIT&TCD20180325).

摘　　要：The ground state properties of the rotating Bose–Einstein condensates(BECs) with SU(3) spin–orbit coupling(SOC)in a two-dimensional harmonic trap are studied. The results show that the ferromagnetic and antiferromagnetic systems present three half-skyrmion chains at an angle of 120°to each other along the coupling directions. With the enhancement of isotropic SU(3) SOC strength, the position of the three chains remains unchanged, in which the number of half-skyrmions increases gradually. With the increase of rotation frequency and atomic density–density interaction, the number of halfskyrmions on the three chains and in the regions between two chains increases gradually. The relationships of the total number of half-skyrmions on the three chains with the increase of SU(3) SOC strength, rotation frequency and atomic density–density interaction are also given. In addition, changing the anisotropic SU(3) SOC strength can regulate the number and morphology of the half-skyrmion chains.

关 键 词：Bose-Einstein condensates SU(3)spin-orbit coupling ROTATION half-skyrmion chains 

分 类 号：O469[理学—凝聚态物理]