典型文献
Interplay of nonreciprocity and nonlinearity on mean-field energy and dynamics of a Bose-Einstein condensate in a double-well potential
文献摘要：
We investigate the mean-field energy spectrum and dynamics in a Bose-Einstein condensate in a double-well potential with non-Hermiticity from the nonreciprocal hopping,and show that the interplay of nonreciprocity and nonlinearity leads to exotic properties.Under the two-mode and mean-field approximations,the nonreciprocal generalization of the nonlinear Schr?dinger equation and Bloch equations of motion for this system are obtained.We analyze the PT phase diagram and the dynamical stability of fixed points.The reentrance of PT-symmetric phase and the reformation of stable fixed points with increasing the nonreciprocity parameter are found.Besides,we uncover a linear self-trapping effect induced by the nonreciprocity.In the nonlinear case,the self-trapping oscillation is enhanced by the nonreciprocity and then collapses in the PT-broken phase,and can finally be recovered in the reentrant PT-symmetric phase.
文献关键词：
中图分类号：
作者姓名：
Yi-Piao Wu;Guo-Qing Zhang;Cai-Xia Zhang;Jian Xu;Dan-Wei Zhang
作者机构：
Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials,School of Physics and Telecommunication Engineering,South China Normal University,Guangzhou 510006,China;Guangdong-Hong Kong Joint Laboratory of Quantum Matter,Frontier Research Institute for Physics,South China Normal University,Guangzhou 510006,China;College of Electronics and Information Engineering,Guangdong Ocean University,Zhanjiang 524088,China
文献出处：
引用格式：
[1]Yi-Piao Wu;Guo-Qing Zhang;Cai-Xia Zhang;Jian Xu;Dan-Wei Zhang-.Interplay of nonreciprocity and nonlinearity on mean-field energy and dynamics of a Bose-Einstein condensate in a double-well potential)[J].物理学前沿,2022(04):163-172
A类：
reentrance
B类：
Interplay,nonreciprocity,nonlinearity,mean,field,energy,dynamics,Bose,Einstein,condensate,double,well,potential,We,investigate,spectrum,Hermiticity,from,nonreciprocal,hopping,show,that,interplay,leads,exotic,properties,Under,two,mode,approximations,generalization,Schr,dinger,Bloch,equations,motion,this,system,are,obtained,analyze,PT,phase,diagram,dynamical,stability,fixed,points,symmetric,reformation,stable,increasing,parameter,found,Besides,uncover,self,trapping,effect,induced,by,case,oscillation,enhanced,then,collapses,broken,can,finally,be,recovered,reentrant
AB值：
0.551003
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