Hierarchical dimensional crossover of an optically-trapped quantum gas with disorder

作     者：Kangkang Li Zhaoxin Liang Kangkang Li;Zhaoxin Liang

作者机构：Department of PhysicsZhejiang Normal UniversityJinhua 321004China 

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

年 卷 期：2022年第74卷第12期

页      面：138-145页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：the Zhejiang Provincial Natural Science Foundation(Grant Nos.LZ21A040001 and LQ20A040004) the National Natural Science Foundation of China(Nos.12074344,and 12104407) the key projects of the Natural Science Foundation of China(Grant No.11835011) 

主　　题：ultracold quantum gas Bogoliubov theory dimensional crossover quantum depletion 

摘      要：Dimensionality serves as an indispensable ingredient in any attempt to formulate low-dimensional physics,and studying the dimensional crossover at a fundamental level is *** purpose of this work is to study the hierarchical dimensional crossovers,namely the crossover from three dimensions(3D)to quasi-2D and then to *** system consists of a 3D Bose–Einstein condensate trapped in an anisotropic 2D optical lattice characterized by the lattice depths V1 along the x direction and V2 along the y direction,respectively,where the hierarchical dimensional crossover is controlled via V1 and *** analytically derive the ground-state energy,quantum depletion and the superfluid density of the *** results demonstrate the 3D-quasi-2D-1D dimensional crossovers in the behavior of quantum *** for possible experimental realization of our scenario are also discussed.