New description of orbital motion with arbitrary angular momenta
- 1 January 1998
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 31 (1), 31-48
- https://doi.org/10.1088/0953-4075/31/1/007
Abstract
A formulation is presented for a variational calculation of N-body systems on a correlated Gaussian basis with arbitrary angular momenta. The rotational motion of the system is described with a single spherical harmonic of the total angular momentum L, and thereby needs no explicit coupling of partial waves between particles. A simple generating function for the correlated Gaussian is exploited to derive the matrix elements. The formulation is applied to various Coulomb three-body systems such as , and up to L = 4 in order to show its usefulness and versatility. A stochastic selection of the basis functions yields good results for various angular momentum states.Keywords
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