New version of the Rayleigh-Schrodinger perturbation theory

被引：0

作者：

Kalhous, M

Skála, L

Zamastil, J

Cízek, J

机构：

[1] Charles Univ, Fac Math & Phys, CR-12116 Prague 2, Czech Republic

[2] Univ Waterloo, Waterloo, ON N2L 3G1, Canada

来源：

COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS | 2003年 / 68卷 / 02期

关键词：

quantum mechanics; Rayleigh-Schrodinger perturbation theory; wavefunctions; Barbanis hamiltonian;

D O I：

10.1135/cccc20030295

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

New version of the Rayleigh-Schrodinger perturbation theory based on the linear dependence of the perturbation wavefunctions on the perturbation energies is summarized. It is shown that this method is suitable also for multidimensional problems and the linear dependence can be used at an arbitrary point inside the integration region. The resulting perturbation theory is simple and can be used at large orders. As an example, the method is applied to the Barbanis hamiltonian.

引用

页码：295 / 306

页数：12

共 11 条

[1]

[Anonymous], 1970, QUANTUM MECH

[2] A new efficient method for calculating perturbative energies using functions which are not square integrable: Regularization and justification - Comment [J].