標題: | A simple Dufort-Frankel-type scheme for the Gross-Pitaevskii equation of Bose-Einstein condensates on different geometries |
作者: | Lai, MC Huang, CY Lin, TS 應用數學系 Department of Applied Mathematics |
關鍵字: | Dufort-Frankel scheme;Gross-Pitaevskii equation;nonlinear Schrodinger equation;Bose-Einstein condensates |
公開日期: | 1-七月-2004 |
摘要: | We develop a simple Dufort-Frankel-type scheme for solving the time-dependent Gross-Pitaevskii equation (GPE). The GPE is a nonlinear Schrodinger equation describing the Bose-Einstein condensation (BEC) at very low temperature. Three different geometries including 1D spherically symmetric, 2D cylindrically symmetric, and 3D anisotropic Cartesian domains are considered. The present finite difference method is explicit, linearly unconditional stable and is able to handle the coordinate singularities in a natural way. Furthermore, the scheme is time reversible and satisfies a discrete analogue of density conservation law. (C) 2004 Wiley Periodicals, Inc. |
URI: | http://dx.doi.org/10.1002/num.20008 http://hdl.handle.net/11536/26625 |
ISSN: | 0749-159X |
DOI: | 10.1002/num.20008 |
期刊: | NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS |
Volume: | 20 |
Issue: | 4 |
起始頁: | 624 |
結束頁: | 638 |
顯示於類別: | 期刊論文 |