[HTML][HTML] Software for the frontiers of quantum chemistry: An overview of developments in the Q-Chem 5 package

E Epifanovsky, ATB Gilbert, X Feng, J Lee… - The Journal of …, 2021 - pubs.aip.org
This article summarizes technical advances contained in the fifth major release of the Q-
Chem quantum chemistry program package, covering developments since 2015. A …

Real-time time-dependent electronic structure theory

X Li, N Govind, C Isborn, AE DePrince III… - Chemical …, 2020 - ACS Publications
Real-time electronic structure methods provide an unprecedented view of electron dynamics
and ultrafast spectroscopy on the atto-and femtosecond time scale with vast potential to yield …

Accurate computation of quantum excited states with neural networks

D Pfau, S Axelrod, H Sutterud, I von Glehn, JS Spencer - Science, 2024 - science.org
We present an algorithm to estimate the excited states of a quantum system by variational
Monte Carlo, which has no free parameters and requires no orthogonalization of the states …

Benchmarking TD-DFT and wave function methods for oscillator strengths and excited-state dipole moments

R Sarkar, M Boggio-Pasqua, PF Loos… - Journal of Chemical …, 2021 - ACS Publications
Using a set of oscillator strengths and excited-state dipole moments of near full configuration
interaction quality determined for small compounds, we benchmark the performances of …

A mountaineering strategy to excited states: Highly accurate energies and benchmarks for medium sized molecules

PF Loos, F Lipparini, M Boggio-Pasqua… - Journal of Chemical …, 2020 - ACS Publications
Following our previous work focusing on compounds containing up to 3 non-hydrogen
atoms [J. Chem. Theory Comput. 2018, 14, 4360–4379], we present here highly accurate …

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 …

Excited state orbital optimization via minimizing the square of the gradient: General approach and application to singly and doubly excited states via density functional …

D Hait, M Head-Gordon - Journal of chemical theory and …, 2020 - ACS Publications
We present a general approach to converge excited state solutions to any quantum
chemistry orbital optimization process, without the risk of variational collapse. The resulting …

The quest for highly accurate excitation energies: A computational perspective

PF Loos, A Scemama, D Jacquemin - The journal of physical …, 2020 - ACS Publications
We provide an overview of the successive steps that made it possible to obtain increasingly
accurate excitation energies with computational chemistry tools, eventually leading to …

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 …

Multicomponent quantum chemistry: Integrating electronic and nuclear quantum effects via the nuclear–electronic orbital method

F Pavošević, T Culpitt, S Hammes-Schiffer - Chemical reviews, 2020 - ACS Publications
In multicomponent quantum chemistry, more than one type of particle is treated quantum
mechanically with either density functional theory or wave function based methods. In …