物理学报2019，Vol.68Issue(4)：127-133,7.DOI:10.7498/aps.68.20181954
光学微腔中一维费米气的磁性关联特性
Magnetic properties of one-dimensional Fermi gases in an optical cavity
摘要
Abstract
In this work we show that the superradiance of the cavity photons can give rise to a magnetic transformation for the atomic system when the quasi one-dimensional Fermi gases are coupled to an optical cavity. This magnetic transformation has a close relationship with the atomic detuning and the filling number. When the interaction between the atoms is neglected, the mean-field approximation may be used in the superradiant phase. In this approximation, we analyze the static spin structure factors of the system with different filling numbers and atomic detuning. Then we characterize the cavity photons-assisted magnetic transformation and obtain the phase diagrams which are dependent on the cavity parameters. Finally, the feasible experimental parameters of our results are also discussed.关键词
有效光晶格/超辐射/自旋结构因子/磁性关联Key words
effective optical lattice/superradiance/spin structure factor/magnetic correlation引用本文复制引用
冯彦林,樊景涛,陈刚,贾锁堂..光学微腔中一维费米气的磁性关联特性[J].物理学报,2019,68(4):127-133,7.基金项目
国家重点研发计划(批准号: 2017YFA0304203)、国家自然科学基金(批准号: 11674200, 11804204)、教育部长江学者和创新团队发展计划(批准号: IRT13076) 和山西省"1331 工程"重点学科建设计划资助的课题. （批准号: 2017YFA0304203）
