A new iterative method for calculating energy levels and wave functions

被引:85
|
作者
Huang, SW [1 ]
Carrington, T [1 ]
机构
[1] Univ Montreal, Dept Chim, Montreal, PQ H3C 3J7, Canada
来源
JOURNAL OF CHEMICAL PHYSICS | 2000年 / 112卷 / 20期
关键词
D O I
10.1063/1.481492
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We present an efficient iterative method for calculating energy levels and wave functions. The method requires storing only a small number of vectors but allows one to calculate energy levels and wave functions with far fewer matrix-vector products than the filter diagonalization method of Mandelshtam and Taylor. A zeroth-order Hamiltonian is used to precondition a spectral transform Lanczos method. (C) 2000 American Institute of Physics. [S0021-9606(00)00520-1].
引用
收藏
页码:8765 / 8771
页数:7
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