Machine learning force fields

OT Unke, S Chmiela, HE Sauceda… - Chemical …, 2021 - ACS Publications
In recent years, the use of machine learning (ML) in computational chemistry has enabled
numerous advances previously out of reach due to the computational complexity of …

Vibrational spectroscopy by means of first‐principles molecular dynamics simulations

E Ditler, S Luber - Wiley Interdisciplinary Reviews …, 2022 - Wiley Online Library
Vibrational spectroscopy is one of the most important experimental techniques for the
characterization of molecules and materials. Spectroscopic signatures retrieved in …

[HTML][HTML] CP2K: An electronic structure and molecular dynamics software package-Quickstep: Efficient and accurate electronic structure calculations

TD Kühne, M Iannuzzi, M Del Ben, VV Rybkin… - The Journal of …, 2020 - pubs.aip.org
CP2K is an open source electronic structure and molecular dynamics software package to
perform atomistic simulations of solid-state, liquid, molecular, and biological systems. It is …

Automated fitting of neural network potentials at coupled cluster accuracy: Protonated water clusters as testing ground

C Schran, J Behler, D Marx - Journal of chemical theory and …, 2019 - ACS Publications
Highly accurate potential energy surfaces are of key interest for the detailed understanding
and predictive modeling of chemical systems. In recent years, several new types of force …

Pure non-local machine-learned density functional theory for electron correlation

JT Margraf, K Reuter - Nature communications, 2021 - nature.com
Density-functional theory (DFT) is a rigorous and (in principle) exact framework for the
description of the ground state properties of atoms, molecules and solids based on their …

Reducing the cost of neural network potential generation for reactive molecular systems

K Brezina, H Beck, O Marsalek - Journal of Chemical Theory and …, 2023 - ACS Publications
Although machine learning potentials have recently had a substantial impact on molecular
simulations, the construction of a robust training set can still become a limiting factor …

Structure and dynamics of the instantaneous water/vapor interface revisited by path-integral and ab initio molecular dynamics simulations

J Kessler, H Elgabarty, T Spura, K Karhan… - The Journal of …, 2015 - ACS Publications
The structure and dynamics of the water/vapor interface is revisited by means of path-
integral and second-generation Car–Parrinello ab initio molecular dynamics simulations in …

Opposing Electronic and Nuclear Quantum Effects on Hydrogen Bonds in H2O and D2O

T Clark, J Heske, TD Kühne - ChemPhysChem, 2019 - Wiley Online Library
The effect of extending the O− H bond length (s) in water on the hydrogen‐bonding strength
has been investigated using static ab initio molecular orbital calculations. The “polar …

Correlated dynamics in aqueous proton diffusion

SA Fischer, BI Dunlap, D Gunlycke - Chemical science, 2018 - pubs.rsc.org
The aqueous proton displays an anomalously large diffusion coefficient that is up to 7 times
that of similarly sized cations. There is general consensus that the proton achieves its high …

Reduced rovibrational coupling Cartesian dynamics for semiclassical calculations: Application to the spectrum of the Zundel cation

G Bertaina, G Di Liberto, M Ceotto - The Journal of Chemical Physics, 2019 - pubs.aip.org
We study the vibrational spectrum of the protonated water dimer, by means of a divide-and-
conquer semiclassical initial value representation of the quantum propagator, as a first step …