具有自旋轨道耦合的冷原子费米气中的拓扑超流和FFLO超流  

Topological superfluids and FFLO superfluids in spin-orbit coupled atomic Fermi gases

作　　者：王俊[1] 高先龙[1] 

机构地区：[1]浙江师范大学数理与信息工程学院,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2015年第2期129-132,共4页Journal of Zhejiang Normal University:Natural Sciences

基　　金：国家自然科学基金资助项目(11374266;11174253)

摘　　要：研究了具有自旋轨道耦合的冷原子费米气在外磁场作用下的物理性质.通过自洽求解Bogoliubove-de Gennes方程,发现了在不同磁场强度和粒子填充数下,体系分别存在拓扑超流态和Fulde-Ferrell-LarkinOvchinnikov超流态.当体系处于拓扑超流态时,存在零能Majorana费米子.solving the It was investigated the properties of spin-orbit coupled atomic fermi gases under a Zeeman field. By Bogoliubove-de Gennes equation self-consistently, it was found that the system supported the topoi- ogical superfluid state and the Fulde-Ferrell-Larkin-Ovchinnikov superfluid state respectively when the system under the different strength of Zeeman field and filling factors. When the system turned into topological super- fluid state, a pair of zero-energy Majorana fermions were found.

关 键 词：自旋轨道耦合 拓扑超流 Majorana费米子 FFLO超流 

分 类 号：O562.4[理学—原子与分子物理]