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时间分裂空间小波自适应方法在薛定谔方程中的应用

张 然, 张 凯   

  1. 吉林大学数学学院, 长春 130012
  • 收稿日期:2004-02-16 修回日期:1900-01-01 出版日期:2004-04-26 发布日期:2004-04-26
  • 通讯作者: 张 然

Application of time-splitting and wavelet based space-time adaptive method to solving Schrodinger equations

ZHANG Ran, ZHANG Kai   

  1. College of Mathematics, Jilin University, Changchun 130012, China
  • Received:2004-02-16 Revised:1900-01-01 Online:2004-04-26 Published:2004-04-26
  • Contact: ZHANG Ran

摘要: 将时间分裂空间小波自适应方法应用于数值求解薛定谔方程(普朗克常数ε很小时). 为了得到稳定且高精度的数值格式, 采用随空间分辨率提高时间步长也自适应的逼近格式, 并给出具体的数值例子.

关键词: 薛定谔方程, 分裂法, 小波分析

Abstract: The paper presents a time-splitting and wavelet based space-time adaptive method for numerical solution of Schrodinger equat ions (the Planck constant ε is small). The multiresolution structure of wavelet orthonormal bases provides an adaptive way to the local regularity of the solution. In order to gain the stability and precision of the numerical scheme, we introduce an approximate sheme that adapt the time steps to the spatial resolution. Furthermore, numerical tests are presented.

Key words: Schrodinger equation, splitting method, wavele

中图分类号: 

  • O241