Coupled-cluster theory in quantum chemistry

RJ Bartlett, M Musiał - Reviews of Modern Physics, 2007 - APS
Today, coupled-cluster theory offers the most accurate results among the practical ab initio
electronic-structure theories applicable to moderate-sized molecules. Though it was …

Relativistic coupled‐cluster and equation‐of‐motion coupled‐cluster methods

J Liu, L Cheng - Wiley Interdisciplinary Reviews: Computational …, 2021 - Wiley Online Library
The development of relativistic coupled‐cluster (CC) and equation‐of‐motion coupled‐
cluster (EOM‐CC) methods is reviewed. An emphasis is placed on recent efforts to improve …

Gaussian-based coupled-cluster theory for the ground-state and band structure of solids

J McClain, Q Sun, GKL Chan… - Journal of chemical …, 2017 - ACS Publications
We present the results of Gaussian-based ground-state and excited-state equation-of-
motion coupled-cluster theory with single and double excitations for three-dimensional …

Periodic local MP2 method for the study of electronic correlation in crystals: Theory and preliminary applications

C Pisani, L Maschio, S Casassa, M Halo… - Journal of …, 2008 - Wiley Online Library
A computational technique for solving the MP2 equations for periodic systems using a local-
correlation approach and implemented in the CRYSCOR code is presented. The Hartree …

Accurate band gap predictions of semiconductors in the framework of the similarity transformed equation of motion coupled cluster theory

A Dittmer, R Izsak, F Neese, D Maganas - Inorganic chemistry, 2019 - ACS Publications
In this work, we present a detailed comparison between wave-function-based and
particle/hole techniques for the prediction of band gap energies of semiconductors. We …

Excitons in solids from periodic equation-of-motion coupled-cluster theory

X Wang, TC Berkelbach - Journal of Chemical Theory and …, 2020 - ACS Publications
We present an ab initio study of electronically excited states of three-dimensional solids
using Gaussian-based periodic equation-of-motion coupled-cluster theory with single and …

[HTML][HTML] Downfolding of many-body Hamiltonians using active-space models: Extension of the sub-system embedding sub-algebras approach to unitary coupled …

NP Bauman, EJ Bylaska, S Krishnamoorthy… - The Journal of …, 2019 - pubs.aip.org
In this paper, we discuss the extension of the recently introduced subsystem embedding
subalgebra coupled cluster (SES-CC) formalism to unitary CC formalisms. In analogy to the …

Averting the infrared catastrophe in the gold standard of quantum chemistry

N Masios, A Irmler, T Schäfer, A Grüneis - Physical Review Letters, 2023 - APS
Coupled-cluster theories can be used to compute ab initio electronic correlation energies of
real materials with systematically improvable accuracy. However, the widely used coupled …

Natural orbitals for wave function based correlated calculations using a plane wave basis set

A Grüneis, GH Booth, M Marsman… - Journal of chemical …, 2011 - ACS Publications
We demonstrate that natural orbitals allow for reducing the computational cost of wave
function based correlated calculations, especially for atoms and molecules in a large box …

Convergence of many-body wave-function expansions using a plane-wave basis: From homogeneous electron gas to solid state systems

JJ Shepherd, A Grüneis, GH Booth, G Kresse… - Physical Review B …, 2012 - APS
Using the finite simulation-cell homogeneous electron gas (HEG) as a model, we investigate
the convergence of the correlation energy to the complete-basis-set (CBS) limit in methods …