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Double-hybrid density functionals for the condensed phase: Gradients, stress tensor, and auxiliary-density matrix method acceleration

Stein, Frederick; Hutter, Jürg (2022). Double-hybrid density functionals for the condensed phase: Gradients, stress tensor, and auxiliary-density matrix method acceleration. Journal of Chemical Physics, 156(7):074107.

Abstract

Due to their improved accuracy, double-hybrid density functionals emerged as an important method for molecular electronic-structure calculations. The high computational costs of double-hybrid calculations in the condensed phase and the lack of efficient gradient implementations thereof inhibit a wide applicability for periodic systems. We present an implementation of forces and stress tensors for double-hybrid density functionals within the Gaussian and plane-waves electronic structure framework. The auxiliary density matrix method is used to reduce the overhead of the Hartree–Fock kernel providing an efficient and accurate methodology to tackle condensed phase systems. First applications to water systems of different densities and molecular crystals show the efficiency of the implementation and pave the way for advanced studies. Finally, we present large benchmark systems to discuss the performance of our implementation on modern large-scale computers.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Scopus Subject Areas:Physical Sciences > General Physics and Astronomy
Physical Sciences > Physical and Theoretical Chemistry
Uncontrolled Keywords:Physical and Theoretical Chemistry, General Physics and Astronomy
Language:English
Date:21 February 2022
Deposited On:07 Oct 2022 10:47
Last Modified:28 Oct 2024 02:36
Publisher:American Institute of Physics
ISSN:0021-9606
OA Status:Hybrid
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1063/5.0082327
PubMed ID:35183084
Project Information:
  • Funder: SNSF
  • Grant ID: 51NF40-182892
  • Project Title: NCCR MARVEL: Materialsâ�� Revolution: Computational Design and Discovery of Novel Materials (phase II)
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  • Language: English
  • Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)

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