The upper and lower bounds of energy for nuclear and coulomb few-body systems

被引：5

作者：

Donchev A.G. ^{[1
]}

Kalachev S.A. ^{[1
]}

Kolesnikov N.N. ^{[1
]}

Tarasov V.I. ^{[1
]}

机构：

[1] Faculty of Physics, Moscow State University, Moscow

来源：

Physics of Particles and Nuclei Letters | 2007年 / 4卷 / 1期

关键词：

21.10.Dr; 21.45.+v; 45.50.Jf;

D O I：

10.1134/S1547477107010074

中图分类号：

学科分类号：

摘要：

The upper and lower bounds of energy are found for three-, four-, and five-particle nuclear and Coulomb systems in the framework variational method with the trial functions of exponential and Gaussian types. The two-sided estimates of energy not only allow one to fix the limits for the exact value of energy but also provide an additional opportunity for extrapolation of the variational estimates to the exact value of energy. This allows one to reduce the volume of calculations by shortening the number of trial functions without the loss of accuracy. © Pleiades Publishing, Ltd. 2007.

引用

页码：39 / 45

页数：6

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