摘要
采用中心差分和虚时演化数值实验方法研究了简谐势+四次势阱中自旋轨道耦合作用下的两分量旋转玻色爱因斯坦凝聚体。发现自旋轨道作用强度和原子种间相互作用对系统基态结构有着重要的影响,原子种间相互作用强度的增加可使系统从相混合变化成相分离;而自旋轨道耦合作用强度的增加,可使系统从相分离的状态变化成相混合,并产生涡旋、形成分块边界。
The two-component Bose-Einstein condensates in harmonic plus quartic potential with spin-orbit-coupled and rotation have been studied by the finite difference and image-time propagating numerical method. It is found that the inter-component interaction and the strength of the spin-orbit-coupled play an important role in the system’ s ground states. The system can transform from the phase co-exist to the phase separation with the increase of the inter-component interaction;with the increase of the strength of spin-orbit-coupled, the system can trans-form from phase separation to phase co-exist, at the same time, there are vortex and domain in the ground state of the system.
出处
《新疆师范大学学报(自然科学版)》
2015年第1期1-4,105,共4页
Journal of Xinjiang Normal University(Natural Sciences Edition)
基金
四川省科技厅资助项目(2011JY0063)
四川省教育厅资助项目(2ZA148
12ZB313
12ZZ021)
关键词
自旋轨道耦合
玻色-爱因斯坦凝聚
两分量
简谐势+四次势
基态
Spin-orbit-coupled
Bose-Einstein condensates
Two-component
Harmonic plus quartic potential
Ground state