Vortex Quantum Droplets under Competing Nonlinearities  

作　　者：陈桂华 王红成 邓海明 Boris A.Malomed Gui-hua Chen;Hong-cheng Wang;Hai-ming Deng;Boris A.Malomed(School of Electronic Engineering&Intelligentization,Dongguan University of Technology,Dongguan 523808,China;School of Physics and Electronic-Electrical Engineering,Xiangnan University,Chenzhou 423000,China;Instituto de Alta Investigaci´on,Universidad de Tarapac´a,Casilla 7D,Arica,Chile)

机构地区：[1]School of Electronic Engineering&Intelligentization,Dongguan University of Technology,Dongguan 523808,China [2]School of Physics and Electronic-Electrical Engineering,Xiangnan University,Chenzhou 423000,China [3]Instituto de Alta Investigación,Universidad de Tarapacá,Casilla 7D,Arica,Chile

出　　处：《Chinese Physics Letters》2024年第2期1-9,共9页中国物理快报（英文版）

基　　金：supported by Dongguan Science and Technology of Social Development Program (Grant No. 20231800940532);Songshan Lake Sci-Tech Commissioner Program (Grant No. 20234373–01KCJ-G);supported, in part, by the Israel Science Foundation (Grant No. 1695/22)

摘　　要：This concise review summarizes recent advancements in theoretical studies of vortex quantum droplets(VQDs)in matter-wave fields.These are robust self-trapped vortical states in two-and three-dimensional(2D and 3D)Bose–Einstein condensates(BECs)with intrinsic nonlinearity.Stability of VQDs is provided by additional nonlinearities resulting from quantum fluctuations around mean-field states,often referred to as the Lee–Huang–Yang(LHY)corrections.The basic models are presented,with emphasis on the interplay between the mean-field nonlinearity,LHY correction,and spatial dimension,which determines the structure and stability of VQDs.We embark by delineating fundamental properties of VQDs in the 3D free space,followed by consideration of their counterparts in the 2D setting.Additionally,we address stabilization of matter-wave VQDs by optical potentials.Finally,we summarize results for the study of VQDs in the single-component BEC of atoms carrying magnetic moments.In that case,the anisotropy of the long-range dipole-dipole interactions endows the VQDs with unique characteristics.The results produced by the theoretical studies in this area directly propose experiments for the observation of novel physical effects in the realm of quantum matter,and suggest potential applications to the design of new schemes for processing classical and quantum information.

关 键 词：QUANTUM CORRECTION DIPOLE 

分 类 号：O469[理学—凝聚态物理]