کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5417907 1506970 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A perturbative treatment for the bound states of the Hellmann potential
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
A perturbative treatment for the bound states of the Hellmann potential
چکیده انگلیسی
A new approximation formalism is applied to study the bound states of the Hellmann potential, which represents the superposition of the attractive Coulomb potential −a/r and the Yukawa potential b exp (−δr)/r of arbitrary strength b and screening parameter δ. Although the analytic expressions for the energy eigenvalues En,ℓ yield quite accurate results for a wide range of n, ℓ in the limit of very weak screening, the results become gradually worse as the strength b and the screening coefficient δ increase. This is because that the expansion parameter is not sufficiently small enough to guarantee the convergence of the expansion series for the energy levels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure: THEOCHEM - Volume 809, Issues 1–3, 14 May 2007, Pages 103-113
نویسندگان
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