A small parameter approach for few-body problems
Nuclear Theory
2010-11-11 v1 Computational Physics
Abstract
A procedure to solve few-body problems is developed which is based on an expansion over a small parameter. The parameter is the ratio of potential energy to kinetic energy for states having not small hyperspherical quantum numbers, K>K_0. Dynamic equations are reduced perturbatively to equations in the finite-dimension subspace with K\le K_0. Contributions from states with K>K_0 are taken into account in a closed form, i.e. without an expansion over basis functions. Estimates on efficiency of the approach are presented.
Cite
@article{arxiv.0907.0841,
title = {A small parameter approach for few-body problems},
author = {V. D. Efros},
journal= {arXiv preprint arXiv:0907.0841},
year = {2010}
}
Comments
17 pages, 1 figure