Comment on:: "Series solution to the Thomas-Fermi equation" [Phys. Lett. A 365 (2007) 111]
被引:14
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作者:
Fernandez, Francisco M.
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Natl Univ La Plata, CCT La Plata CONICET, Div Quim Teor, INIFTA, RA-1900 La Plata, ArgentinaNatl Univ La Plata, CCT La Plata CONICET, Div Quim Teor, INIFTA, RA-1900 La Plata, Argentina
Fernandez, Francisco M.
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机构:
[1] Natl Univ La Plata, CCT La Plata CONICET, Div Quim Teor, INIFTA, RA-1900 La Plata, Argentina
We discuss a recently proposed analytic solution to the Thomas-Fermi (TF) equation and show that earlier approaches provide more accurate results. In particular, we show that a simple and Straightforward rational approximation to the TF equation yields the slope at origin with unprecedented accuracy, as well as remarkable values of the TF function and its first derivative for other coordinate values. (c) 2008 Elsevier B.V. All rights reserved.