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

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

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The experimental realization of Rydberg dressing technology in ultracold atomic systems provides another superior platform for studying novel states of matter and macroscopic quantum phenomena.In 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 trap.The 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 space.Our 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 phases.More 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 structure.For strongly interacting cases,it can be used to realize different orders of discrete rotational symmetry breaking.

Bose-Einstein condensateRydberg dressingtoroidal trap

Lin-Xue Wang、Hong-Li Yang、Hui Liu、Si-Lin Chen、Ya-Jun Wang、Xiao-Fei Zhang

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Department of Physics,School of Physics and Information Science,Shaanxi University of Science and Technology,Xi'an 710021,China

Department of Basic Sciences,Air Force Engineering University,Xi'an710051,China

国家自然科学基金国家自然科学基金国家自然科学基金中国科学院前沿科学重点研究计划Shaanxi Fundamental Science Research Project for Mathematics and PhysicsScientific Research Program Funded by Shaanxi Provincial Education Department ProgramYouth Innovation Team of Shaanxi Universities

120051251210536512175129ZDBS-LY-701622JSY03423JP020

2024

10.1088/1572-9494/ad0b6e

理论物理通讯(英文版)
中国科学院理论物理研究所 中国物理学会

理论物理通讯(英文版)

CSTPCD
影响因子：0.333
ISSN：0253-6102
年,卷(期)：2024.76(1)
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