Heteronuclear Magnetisms with Ultracold Spinor Bosonic Gases in Optical Lattices  

作　　者：Yongqiang Li Chengkun Xing Ming Gong Guangcan Guo Jianmin Yuan 

机构地区：[1]Department of Physics,National University of Defense Technology,Changsha 410073,China [2]Hunan Key Laboratory of Extreme Matter and Applications,National University of Defense Technology,Changsha 410073,China [3]Key Lab of Quantum Information(CAS),University of Science and Technology of China,Hefei 230026,China [4]CAS Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei 230026,China [5]Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China [6]Hefei National Laboratory,University of Science and Technology of China,Hefei 230088,China [7]Department of Physics,Graduate School of China Academy of Engineering Physics,Beijing 100193,China

出　　处：《Chinese Physics Letters》2024年第2期69-82,共14页中国物理快报（英文版）

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB0500000);the Innovation Program for Quantum Science and Technology(Grant No.2021ZD0301200);the National Natural Science Foundation of China(Grant Nos.12074431,12274384,and 12374252);the Excellent Youth Foundation of Hunan Scientific Committee(Grant No.2021JJ10044).

摘　　要：Motivated by recent realizations of spin-1 NaRb mixtures in the experiments[Phys.Rev.Lett.114,255301(2015);Phys.Rev.Lett.128,223201(2022)],we investigate heteronuclear magnetism in the Mott-insulating regime.Different from the identical mixtures where the boson statistics only admits even parity states from angular momentum composition,for heteronuclear atoms in principle all angular momentum states are allowed,which can give rise to new magnetic phases.While various magnetic phases can be developed over these degenerate spaces,the concrete symmetry breaking phases depend on not only the degree of degeneracy but also the competitions from many-body interactions.We unveil these rich phases using the bosonic dynamical mean-field theory approach.These phases are characterized by various orders,including spontaneous magnetization order,spin magnitude order,singlet pairing order,and nematic order,which may coexist specially in the regime with odd parity.Finally we address the possible parameter regimes for observing these spin-ordered Mott phases.

关 键 词：PARITY MOMENTUM allowed 

分 类 号：O469[理学—凝聚态物理]