Combining wave function methods with density functional theory for excited states

S Ghosh, P Verma, CJ Cramer, L Gagliardi… - Chemical …, 2018 - ACS Publications
We review state-of-the-art electronic structure methods based both on wave function theory
(WFT) and density functional theory (DFT). Strengths and limitations of both the wave …

The Bethe–Salpeter equation in chemistry: relations with TD-DFT, applications and challenges

X Blase, I Duchemin, D Jacquemin - Chemical Society Reviews, 2018 - pubs.rsc.org
We review the many-body Green's function Bethe–Salpeter equation (BSE) formalism that is
rapidly gaining importance for the study of the optical properties of molecular organic …

Many-body perturbation theory calculations using the yambo code

D Sangalli, A Ferretti, H Miranda… - Journal of Physics …, 2019 - iopscience.iop.org
Abstract yambo is an open source project aimed at studying excited state properties of
condensed matter systems from first principles using many-body methods. As input, yambo …

Assessing the performances of CASPT2 and NEVPT2 for vertical excitation energies

R Sarkar, PF Loos, M Boggio-Pasqua… - Journal of Chemical …, 2022 - ACS Publications
Methods able to simultaneously account for both static and dynamic electron correlations
have often been employed, not only to model photochemical events but also to provide …

Reference energies for intramolecular charge-transfer excitations

PF Loos, M Comin, X Blase… - Journal of Chemical …, 2021 - ACS Publications
With the aim of completing our previous efforts devoted to local and Rydberg transitions in
organic compounds, we provide a series of highly accurate vertical transition energies for …

NWChem: Recent and Ongoing Developments

D Mejia-Rodriguez, E Aprà, J Autschbach… - Journal of Chemical …, 2023 - ACS Publications
This paper summarizes developments in the NWChem computational chemistry suite since
the last major release (NWChem 7.0. 0). Specifically, we focus on functionality, along with …

Accurate Ionization Potentials and Electron Affinities of Acceptor Molecules III: A Benchmark of GW Methods

JW Knight, X Wang, L Gallandi… - Journal of chemical …, 2016 - ACS Publications
The performance of different GW methods is assessed for a set of 24 organic acceptors.
Errors are evaluated with respect to coupled cluster singles, doubles, and perturbative …

Benchmarking the Bethe–Salpeter formalism on a standard organic molecular set

D Jacquemin, I Duchemin, X Blase - Journal of Chemical Theory …, 2015 - ACS Publications
We perform benchmark calculations of the Bethe–Salpeter vertical excitation energies for
the set of 28 molecules constituting the well-known Thiel's set, complemented by a series of …

Quasiparticle Self-Consistent GW-Bethe–Salpeter Equation Calculations for Large Chromophoric Systems

A Förster, L Visscher - Journal of chemical theory and …, 2022 - ACS Publications
The GW-Bethe–Salpeter equation (BSE) method is promising for calculating the low-lying
excitonic states of molecular systems. However, so far it has only been applied to rather …

[HTML][HTML] A systematic benchmark of the ab initio Bethe-Salpeter equation approach for low-lying optical excitations of small organic molecules

F Bruneval, SM Hamed, JB Neaton - The Journal of Chemical Physics, 2015 - pubs.aip.org
The predictive power of the ab initio Bethe-Salpeter equation (BSE) approach, rigorously
based on many-body Green's function theory but incorporating information from density …