Re: Coulomb Functions?
- To: mathgroup at yoda.physics.unc.edu
- Subject: Re: Coulomb Functions?
- From: mcdonald at quark.umd.edu (Bill MacDonald)
- Date: Mon, 20 Jan 92 10:39:26 EST
> > I am working on a physics problem (the Hanbury-Brown Twiss interference > effect in ultra-relativistic heavy ion collisions) which requires some major > reductions of integrals involving Coulomb functions (a sub-species of > confluent hypergeometric fucntions which solve the Coulomb-Schroedinger > equation). I've worked a bit on an Mma package for doing gymnastics with > Coulomb functions, but before I get too far, I'd like to know if anyone > has already developed a Mma package for dealing with them. > > Any Coulomb gurus out there? > > John Cramer > Dept. of Physics > University of Washington > Bitnet: cramer at uwaphast > Internet: cramer at phast.phys.washington.edu or c at npl.washington.edu > > John, Probably you are already using the algorithm which Da-Shuan Feng, at the Drexel U. Physics Department, developed and used as the basis of his Coulomb wave function package. This algorithm is based on a continued fraction representation and, although I have not looked at it for 15 years, I believe it would be the easiest, fastest, and most accurate one to use for your Mma. -- William M. MacDonald Professor of Physics University of Maryland Internet: mcdonald at quark.umd.edu