科研之友
微信
新浪微博
Facebook
分享链接
摘要
We propose a high-order conservative method for the nonlinear Schrodinger/Gross-Pitaevskii equation with time-varying coefficients in modeling Bose-Einstein condensation (BEC). This scheme combined with the sixth-order compact finite difference method and the fourth-order average vector field method, finely describes the condensate wave function and physical characteristics in some small potential wells. Numerical experiments are presented to demonstrate that our numerical scheme is efficient by the comparison with the Fourier pseudo-spectral method. Moreover, it preserves several conservation laws well and even exactly under some specific conditions.
- 出版日期2017-6
- 单位中国人民解放军国防科学技术大学
