PERTURBATION-THEORY BY THE MOMENT METHOD APPLIED TO COUPLED ANHARMONIC-OSCILLATORS

被引：20
|
作者：
FERNANDEZ, FM [1 ]
OGILVIE, JF [1 ]
机构：
[1] NATL UNIV LA PLATA,FAC CIENCIAS EXACTAS,QUINOR,RA-1900 LA PLATA,ARGENTINA
来源：
PHYSICS LETTERS A | 1993年 / 178卷 / 1-2期
关键词：
D O I：
10.1016/0375-9601(93)90719-G
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Perturbation theory according to the moment method is a powerful tool to treat coupled anharmonic oscillators because it leads to simple recurrence relations for the perturbation corrections. We calculate analytic energy coefficients for the lowest states of an exemplary model and illustrate how to overcome the problem posed by degenerate states that are connected through the perturbation.
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页码：11 / 16
页数：6
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