Off-site trimer superfluid on a one-dimensional optical lattice

作     者：范二女 Tony C Scott 张万舟 

作者机构：College of Physics and OptoelectronicsTaiyuan University of TechnologyTaiyuan 030024China Near India Pvt LtdNo.71/72Jyoti Nivas College RoadKoramangalaBangalore 560095India 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2017年第26卷第4期

页      面：168-173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：Project supported by the National Natural Science Foundation of China(Grant Nos.11305113) the Project GDW201400042 for the“High End Foreign Experts Program” 

主　　题：Bose-Hubbard model off-site trimer superfluid density matrix renormalization group method 

摘      要：The Bose-Hubbard model with an effective off-site three-body tunneling,characterized by jumps towards one another,between one atom on a site and a pair atoms on the neighborhood site,is studied systematically on a one-dimensional（1D） lattice,by using the density matrix renormalization group *** off-site trimer superfluid,condensing at momentum k = 0,emerges in the softcore Bose-Hubbard model but it disappears in the hardcore Bose-Hubbard *** results numerically verify that the off-site trimer superfluid phase derived in the momentum space from[***.A81,011601（R）（2010）]is stable in the thermodynamic *** off-site trimer superfluid phase,the partially off-site trimer superfluid phase and the Mott insulator phase are found,as well as interesting phase transitions,such as the continuous or first-order phase transition from the trimer superfluid phase to the Mott insulator *** results are helpful in realizing this novel off-site trimer superfluid phase by cold atom experiments.