Multipole-based distance-dependent screening of Coulomb integrals

dc.contributor.authorIrmler, Andreas
dc.contributor.authorPauly, Fabian
dc.date.accessioned2019-09-09T14:43:36Z
dc.date.available2019-09-09T14:43:36Z
dc.date.issued2019-08-28eng
dc.description.abstractWe derive a new estimate for two-electron repulsion integrals (ERIs), when evaluated within a local atomic basis set. It is based on the multipole expansion and provides a rigorous upper bound of an ERI for well-separated charge distributions. The scheme is generally applicable in any formalism that uses ERIs. We employ it here to screen for potentially negligible contributions in the calculation of the Fock exchange matrix. Using Gaussian basis functions, we show that the estimate allows us to accelerate the construction of the exchange matrix by up to a factor of two without introducing further approximations.eng
dc.description.versionpublishedeng
dc.identifier.doi10.1063/1.5111054eng
dc.identifier.pmid31470723eng
dc.identifier.ppn1677246766
dc.identifier.urihttps://kops.uni-konstanz.de/handle/123456789/46808
dc.language.isoengeng
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dc.subject.ddc530eng
dc.titleMultipole-based distance-dependent screening of Coulomb integralseng
dc.typeJOURNAL_ARTICLEeng
dspace.entity.typePublication
kops.citation.bibtex
@article{Irmler2019-08-28Multi-46808,
  year={2019},
  doi={10.1063/1.5111054},
  title={Multipole-based distance-dependent screening of Coulomb integrals},
  number={8},
  volume={151},
  issn={0021-9606},
  journal={The Journal of chemical physics},
  author={Irmler, Andreas and Pauly, Fabian},
  note={Article Number: 084111}
}
kops.citation.iso690IRMLER, Andreas, Fabian PAULY, 2019. Multipole-based distance-dependent screening of Coulomb integrals. In: The Journal of chemical physics. 2019, 151(8), 084111. ISSN 0021-9606. eISSN 1089-7690. Available under: doi: 10.1063/1.5111054deu
kops.citation.iso690IRMLER, Andreas, Fabian PAULY, 2019. Multipole-based distance-dependent screening of Coulomb integrals. In: The Journal of chemical physics. 2019, 151(8), 084111. ISSN 0021-9606. eISSN 1089-7690. Available under: doi: 10.1063/1.5111054eng
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