Geminal-based electronic structure methods in quantum chemistry. Toward a geminal model chemistry

P Tecmer, K Boguslawski - Physical Chemistry Chemical Physics, 2022 - pubs.rsc.org
In this review, we discuss the recent progress in developing geminal-based theories for
challenging problems in quantum chemistry. Specifically, we focus on the antisymmetrized …

Geminal-based strategies for modeling large building blocks of organic electronic materials

P Tecmer, M Gałyńska, L Szczuczko… - The Journal of …, 2023 - ACS Publications
We elaborate on unconventional electronic structure methods based on geminals and their
potential to advance the rapidly developing field of organic photovoltaics (OPVs) …

iCI: Iterative CI toward full CI

W Liu, MR Hoffmann - Journal of chemical theory and …, 2016 - ACS Publications
It is shown both theoretically and numerically that the minimal multireference configuration
interaction (CI) approach [Liu, W.; Hoffmann, MR Theor. Chem. Acc. 2014, 133, 1481] …

Selected configuration interaction in a basis of cluster state tensor products

V Abraham, NJ Mayhall - Journal of Chemical Theory and …, 2020 - ACS Publications
Selected configuration interaction (SCI) methods are currently enjoying a resurgence due to
several recent developments which improve either the overall computational efficiency or …

SDS: the 'static–dynamic–static'framework for strongly correlated electrons

W Liu, MR Hoffmann - Isaiah Shavitt: A Memorial Festschrift from …, 2016 - Springer
A genetic 'static–dynamic–static'(SDS) framework is proposed for describing strongly
correlated electrons. It permits both simple and sophisticated parameterizations of many …

[HTML][HTML] A projected approximation to strongly contracted N-electron valence perturbation theory for DMRG wavefunctions

M Roemelt, S Guo, GKL Chan - The Journal of chemical physics, 2016 - pubs.aip.org
A novel approach to strongly contracted N-electron valence perturbation theory (SC-
NEVPT2) as a means of describing dynamic electron correlation for quantum chemical …

Automatic construction of the initial orbitals for efficient generalized valence bond calculations of large systems

Q Wang, J Zou, E Xu, P Pulay, S Li - Journal of chemical theory …, 2018 - ACS Publications
We propose an efficient general strategy for generating initial orbitals for generalized
valence bond (GVB) calculations which makes routine black-box GVB calculations on large …

Perspectives of APSG‐based multireference perturbation theories

P Jeszenszki, PR Nagy, T Zoboki… - … Journal of Quantum …, 2014 - Wiley Online Library
Applicability of antisymmetrized product of strongly orthogonal geminals type wave
functions, serving reference states for multireference many‐body perturbation theories, is …

Coupled cluster and perturbation theories based on a cluster mean-field reference applied to strongly correlated spin systems

A Papastathopoulos-Katsaros… - Journal of Chemical …, 2022 - ACS Publications
We introduce perturbation and coupled-cluster theories based on a cluster mean-field
reference for describing the ground state of strongly correlated spin systems. In cluster mean …

Efficient Implementation of Block-Correlated Coupled Cluster Theory Based on the Generalized Valence Bond Reference for Strongly Correlated Systems

J Zou, Q Wang, X Ren, Y Wang… - Journal of Chemical …, 2022 - ACS Publications
An optimized implementation of block-correlated coupled cluster theory based on the
generalized valence bond wave function (GVB-BCCC) for the singlet ground state of …