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arXiv 0907.0841nucl-thphysics.comp-ph
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少体问题的小参数方法

A small parameter approach for few-body problems

V. D. Efros

摘要:

本文提出了一种基于小参数展开的少体问题求解方法。该参数是具有不小超球量子数的态的势能与动能之比,K>K_0。将动力学方程摄动约化为有限维子空间中的方程,其中K为\le K_0。K>K_0态的贡献以封闭形式考虑,即不需要基函数展开。估计的方法的效率。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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