[1]郭飞翔,周晓凡,赵华.梯状光晶格中自旋轨道耦合的排斥费米气体[J].深圳大学学报理工版,2015,32(5):449-457.[doi:10.3724/SP.J.1249.2015.05449]
 Guo Feixiang,Zhou Xiaofan,and Zhao Hua.Spin-orbit coupled Fermi atoms loaded in an optical ladder lattice[J].Journal of Shenzhen University Science and Engineering,2015,32(5):449-457.[doi:10.3724/SP.J.1249.2015.05449]
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梯状光晶格中自旋轨道耦合的排斥费米气体()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第32卷
期数:
2015年第5期
页码:
449-457
栏目:
物理
出版日期:
2015-09-18

文章信息/Info

Title:
Spin-orbit coupled Fermi atoms loaded in an optical ladder lattice
文章编号:
201505002
作者:
郭飞翔1周晓凡2赵华1
1)深圳大学物理科学与技术学院,深圳518060
2)山西大学理论物理研究所,太原030006
Author(s):
Guo Feixiang1 Zhou Xiaofan2 and Zhao Hua1
1)College of Physics Science and Technology, Shenzhen University, Shenzhen 518060, P.R.China
2)Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, P.R.China
关键词:
凝聚态物理Fermi-Hubbard 模型光学晶格Zeeman场自旋轨道耦合密度矩阵重整化群相分离
Keywords:
condensed matter physics Fermi-Hubbard model optical lattice Zeeman field spin-orbit coupling density-matrix-renormalization-group (DMRG) phase separation
分类号:
O 469
DOI:
10.3724/SP.J.1249.2015.05449
文献标志码:
A
摘要:
采用密度矩阵重整化群(density-matrix-renormalization-group, DMRG)方法,研究梯状光晶格中排斥相互作用费米气体的基态属性.研究表明,Zeeman场能够激发系统的相分离(完全极化相和部分极化相),而自旋轨道耦合效应能抑制相分离,使整个晶格处于部分极化相,在不同的强弱排斥相互作用系统中,极化率会随自旋轨道耦合改变表现出不同的变化规律.
Abstract:
The density-matrix-renormalization-group (DMRG) method is used to numerically calculate the ground state of repulsively interacting Fermi atoms loaded in optical ladder lattices. It is found that the system exhibits the spatial separation of a fully spin-polarized phase from the partially polarized phase for the suitable intensity of Zeeman field without the effect of spin-orbit coupled atoms. The spin-orbit coupling drives the fully spin-polarized phase to the partially spin-polarized phase in the whole system. The spin polarizations of weak and strong repulsively interacting systems vary differently with spin-orbit interaction strength.

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备注/Memo

备注/Memo:
Received:2015-06-04;Accepted:2015-08-17
Foundation:National Natural Science Foundation of China(10774095); Shenzhen Science and Technology Research Foundation(JC201005280474A)
Corresponding author:Associate professor Zhao Hua.E-mail:zhaohua@szu.edu.cn
Citation:Guo Feixiang, Zhou Xiaofan, Zhao Hua. Spin-orbit coupled Fermi atoms loaded in an optical ladder lattice[J]. Journal of Shenzhen University Science and Engineering, 2015, 32(5): 449-457.(in Chinese)
基金项目:国家自然科学基金资金项目(10774095);深圳市科技研发基金资助项目(JC201005280474A)
作者简介:郭飞翔(1988—),男(汉族),河北省石家庄市人,深圳大学硕士研究生.E-mail:2130100101@email.szu.edu.cn
引文:郭飞翔,周晓凡,赵华.梯状光晶格中自旋轨道耦合的排斥费米气体[J]. 深圳大学学报理工版,2015,32(5):449-457.
更新日期/Last Update: 2015-09-15