Comparison of the Boys and Pipek-Mezey Localizations in the Local Correlation Approach and Automatic Virtual Basis Selection

by Boughton, J. W.; Pulay, P.

Our implementation of Pipek-Mezey population localization is described. It is compared with other localization schemes and its use in the framework of the local correlation method is discussed. For such use, this localization is shown to be clearly superior to Boys in the case of physically well-localized systems. Our current algorithm for selection of local virtual spaces is also described.

Journal
Journal of Computational Chemistry
Volume
14
Issue
6
Year
1993
Start Page
736-740
URL
https://dx.doi.org/10.1002/jcc.540140615
ISBN/ISSN
1096-987X; 0192-8651
DOI
10.1002/jcc.540140615