The 3-dimensional Fourier grid Hamiltonian method

Details The 3-dimensional Fourier grid Hamiltonian method The 3-dimensional Fourier grid Hamiltonian method

1997-11-20

arxiv.org/abs/physics/9711019v1

J. Comput. Phys. 139, 127-136 (1998).

Physics

Computational Physics

13 pages, 1 figure. RevTeX file. To appear in J. Comput. Phys

Scientific paper

10.1006/jcph.1997.5866

A method to compute the bound state eigenvalues and eigenfunctions of a Schr\"{o}dinger equation or a spinless Salpeter equation with central interaction is presented. This method is the generalization to the three-dimensional case of the Fourier grid Hamiltonian method for one-dimensional Schr\"{o}dinger equation. It requires only the evaluation of the potential at equally spaced grid points and yields the radial part of the eigenfunctions at the same grid points. It can be easily extended to the case of coupled channel equations and to the case of non-local interactions.

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