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Construction of open shell perturbation theory invariant with respect to orbital degeneracy

Construction of open shell perturbation theory invariant with respect to orbital degeneracy

Authors :
Pawel M. Kozlowski
Ernest R. Davidson
Source :
Chemical Physics Letters. 226:440-446
Publication Year :
1994
Publisher :
Elsevier BV, 1994.

Abstract

A form of open shell perturbation theory that is invariant with respect to orbital degeneracy is proposed. This new methodology is based entirely on the spin-restricted formalism. Preliminary numerical results are presented and compared with other formulations of perturbation theory.

Details

ISSN :
00092614
Volume :
226
Database :
OpenAIRE
Journal :
Chemical Physics Letters
Accession number :
edsair.doi...........c2321a3e45776c0d66e7b65b256b8a55
Full Text :
https://doi.org/10.1016/0009-2614(94)00763-2