An improvement of the resolution of the identity approximation for the 
formation of the Coulomb matrix

Neese, Frank

doi:10.1002/jcc.10318

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

An improvement of the resolution of the identity approximation for the formation of the Coulomb matrix

MPS-Authors

/persons/resource/persons216825

Neese, Frank
Research Department Wieghardt, Max Planck Institute for Radiation Chemistry, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Neese, F. (2003). An improvement of the resolution of the identity approximation for the formation of the Coulomb matrix. Journal of Computational Chemistry, 24(14), 1740-1747. doi:10.1002/jcc.10318.

Cite as: https://hdl.handle.net/21.11116/0000-0008-10BB-3

Abstract

A straightforward modification of the resolution of the identity (RI) approximation to the Coulomb interaction is described. In the limit of basis sets that are dominated by high angular momentum functions the observed speedups in realistic test systems reach a factor of 2 compared to the standard RI algorithm, and a factor of up to 300 compared to the standard algorithm to form the Coulomb matrix. More moderate savings on the order of 0–20% are obtained for the more commonly used smaller basis sets. A series of test calculations is reported to illustrate the efficiency of the algorithm.