Ground state of Rydberg-dressed Bose gas confined in a toroidal trap

作     者：Lin-Xue Wang Hong-Li Yang Hui Liu Si-Lin Chen Ya-Jun Wang Xiao-Fei Zhang Lin-Xue Wang;Hong-Li Yang;Hui Liu;Si-Lin Chen;Ya-Jun Wang;Xiao-Fei Zhang

作者机构：Department of PhysicsSchool of Physics and Information ScienceShaanxi University of Science and TechnologyXi'an 710021China Department of Basic SciencesAir Force Engineering UniversityXi'an 710051China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2024年第76卷第1期

页      面：29-35页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China under Grants No.12005125,No.12105365,12175129 the Key Research Program of Frontier Sciences of Chinese Academy of Sciences under Grant No.ZDBS-LY-7016 Shaanxi Fundamental Science Research Project for Mathematics and Physics under Grant No.22JSY034 Scientific Research Program Funded by Shaanxi Provincial Education Department Program No.23JP020 the Youth Innovation Team of Shaanxi Universities 

主　　题：Bose-Einstein condensate Rydberg dressing toroidal trap 

摘      要：The experimental realization of Rydberg dressing technology in ultracold atomic systems provides another superior platform for studying novel states of matter and macroscopic quantum *** this work,based on the mean-field theory,we have investigated the ground-state phases of a two-component Bose–Einstein condensate with Rydberg interaction and confined in a toroidal *** effects of the Rydberg interaction and external potential,especially the Rydberg blockade radius,on the ground-state structure of such a system have been investigated in full parameter *** results show that the Rydberg blockade radius,which can be regarded as another controllable parameter,can be used to obtain a variety of ground-state *** interestingly,it is found that for weak Rydberg interactions,the Rydberg blockade radius breaks the spontaneous rotational symmetry of the system,leading to the formation of a discrete unit cell *** strongly interacting cases,it can be used to realize different orders of discrete rotational symmetry breaking.