TY - JOUR T1 - The Numerical Study of the Ground States of Spin-1 Bose-Einstein Condensates with Spin-Orbit-Coupling AU - Yongjun Yuan, Zhiguo Xu, Qinglin Tang & Hanquan Wang JO - East Asian Journal on Applied Mathematics VL - 3 SP - 598 EP - 610 PY - 2018 DA - 2018/08 SN - 8 DO - http://doi.org/10.4208/eajam.300418.300618 UR - https://global-sci.org/intro/article_detail/eajam/12628.html KW - Spin-orbit-coupled spin-1 Bose-Einstein condensate, projection gradient method, ground state, energy functional minimisation. AB -
A projection gradient method for computing the ground state of the spin-orbit-coupled spin-1 Bose-Einstein condensate at extremely low temperatures is proposed. The continuous gradient flows are discretised by a second-order finite difference method in space and the Crank-Nicolson method in time. Our discretisation preserves the total mass conservation and the energy diminishing property. Numerical results show the efficiency of the method.