Plane wave basis set correction methods for RPA correlation energies
Materials Science
2023-07-18 v2 Chemical Physics
Abstract
Electronic correlation energies from the random-phase approximation converge slowly with respect to the plane wave basis set size. We study the conditions, under which a short-range local density functional can be used to account for the basis set incompleteness error. Furthermore, we propose a one-shot extrapolation scheme based on the Lindhard response function of the homogeneous electron gas. The different basis set correction methods are used to calculate equilibrium lattice constants for prototypical solids of different bonding types.
Keywords
Cite
@article{arxiv.2001.08124,
title = {Plane wave basis set correction methods for RPA correlation energies},
author = {Stefan Riemelmoser and Merzuk Kaltak and Georg Kresse},
journal= {arXiv preprint arXiv:2001.08124},
year = {2023}
}
Comments
postprint, typographical errors corrected: lower frequency integration limit in Eqs. (13) and (B1) [correct is 0 instead of minus infinity]; corrected minus signs for Eqs. (B9) and (B10)