首都师范大学学报（自然科学版）2025，Vol.46Issue(3)：30-34,5.DOI:10.19789/j.1004-9398.2025.03.005
具有腔支持的一维自旋轨道耦合的三维费米气体的超辐射研究
Superradiation of three dimensional Fermi gases with one dimensional spin orbit coupling supported by a cavity
摘要
Abstract
Based on the method of mean field theory,the superradiation transition of a cavity supported three-dimensional Fermi gas coupled with a one dimensional spin-orbit-coupling(SOC)is systematically studied.The superradiation transition behavior of Fermi gas is obviously changed by the introduction of SOC.Due to the interplay between the single-particle energy spectrum change caused by SOC and Pauli exclusion principle,the superradiation threshod of the system will increase with the increase of SOC intensity,meaning that SOC tends to suppress the occurrence of superradiation.The effect of atom-light detuning is further analyzed,and the ground state phase diagram of the system without considering the interaction between atoms is obtained.The evolution characteristics of chemical potential,superradiation order parameters,average photon number and atomic polarization of observable measurements before and after the superradiation transition are discussed.The results show that the SOC provides an effective way to manipulate the superradiant behavior of Fermi gas,which is also helpful for the further study on the non-equilibrium many-body states of the cavity and fermion coupling system.关键词
费米气体/超辐射/自旋轨道耦合Key words
Fermi gas/superradiation/spin-orbit coupling分类
物理学引用本文复制引用
向胡月,杨明月,孙青..具有腔支持的一维自旋轨道耦合的三维费米气体的超辐射研究[J].首都师范大学学报（自然科学版）,2025,46(3):30-34,5.基金项目
国家自然科学基金项目(11875195) （11875195）
