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- Title
Potential Energy Surfaces Using Algebraic Methods Based on Unitary Groups.
- Authors
Lemus, Renato
- Abstract
This contribution reviews the recent advances to estimate the potential energy surfaces through algebraic methods based on the unitary groups used to describe the molecular vibrational degrees of freedom. The basic idea is to introduce the unitary group approach in the context of the traditional approach, where the Hamiltonian is expanded in terms of coordinates and momenta. In the presentation of this paper, several representative molecular systems that permit to illustrate both the different algebraic approaches as well as the usual problems encountered in the vibrational description in terms of internal coordinates are presented. Methods based on coherent states are also discussed.
- Subjects
HAMILTONIAN operator; DIFFERENTIAL operators; QUANTUM theory; COORDINATES; STOCHASTIC processes; UNITARY groups; GROUP theory
- Publication
Advances in Physical Chemistry, 2011, p1
- ISSN
1687-7985
- Publication type
Article
- DOI
10.1155/2011/593872