库伦函数

库伦函数(Couloumb function)是下列常微分方程的解

${\frac {d^{2}w(\rho )}{d\rho ^{2}}}+(1-{\frac {2\eta }{\rho }}-{\frac {l*(l+1)}{\rho ^{2}}})*w(\rho )=0$

此方程的两个解为：

$F_{\ell }(\eta ,\rho )$ 和 $G_{\ell }(\eta ,\rho )$ , 以合流超几何函数表示^[1]^[2]

F_{\ell }(\eta ,\rho )={\frac {2^{\ell }e^{-\pi \eta /2}|\Gamma (\ell +1+i\eta )|}{(2\ell +1)!}}\rho ^{\ell +1}e^{\mp i\rho }M(\ell +1\mp i\eta ,2\ell +2,\pm 2i\rho )\,.

参考文献编辑

^ Thompson, I. J., Coulomb Functions, Olver, Frank W. J.; Lozier, Daniel M.; Boisvert, Ronald F.; Clark, Charles W. (编), NIST Handbook of Mathematical Functions, Cambridge University Press, 2010, ISBN 978-0521192255, MR 2723248
^ Abramowitz, Milton; Stegun, Irene Ann (编). Chapter 14. Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables. Applied Mathematics Series 55 Ninth reprint with additional corrections of tenth original printing with corrections (December 1972); first. Washington D.C.; New York: United States Department of Commerce, National Bureau of Standards; Dover Publications. 1983: 538. ISBN 978-0-486-61272-0. LCCN 64-60036. MR 0167642. LCCN 65-12253.

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