ORTHOGONAL POLYNOMIAL EXPANSIONS FOR EFFECTIVE INTERACTIONS IN THE MODIFIED LIPKIN MODEL

被引：1

作者：

CHANG, BD

DRAAYER, JP

机构：

[1] Department of Physics and Astronomy, Louisiana State University, Baton Rouge

来源：

PHYSICS LETTERS B | 1979年 / 80卷 / 4-5期

关键词：

D O I：

10.1016/0370-2693(79)91182-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The effective interaction in a one-dimensional model is calculated in terms of an orthogonal polynomial (OP) expansion derived from spectral distribution considerations. Configuration densities are assumed to be gaussian. The results are compared with those of a Brillouin-Wigner (BW) perturbation expansion for the same model. While for a strong perturbation the BW series diverges, the OP expansion is shown to converge smoothly. © 1979.

引用

页码：332 / 334

页数：3

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