Automating the Development of High-Dimensional Reactive Potential Energy Surfaces with the robosurfer Program System

T Győri, G Czakó - Journal of Chemical Theory and Computation, 2019 - ACS Publications
The construction of high-dimensional global potential energy surfaces (PESs) from ab initio
data has been a major challenge for decades. Advances in computer hardware, electronic …

Reaction dynamics of methane with F, O, Cl, and Br on ab initio potential energy surfaces

G Czako, JM Bowman - The Journal of Physical Chemistry A, 2014 - ACS Publications
The bimolecular hydrogen abstraction reactions of methane with atoms have become
benchmark systems to test and extend our knowledge of polyatomic chemical reactivity. We …

Extrapolation in quantum chemistry: Insights on energetics and reaction dynamics

AJC Varandas - Journal of Theoretical and Computational …, 2020 - World Scientific
Since there is no exact solution for problems in physics and chemistry, extrapolation
methods may assume a key role in quantitative quantum chemistry. Two topics where it …

Optimizing hydropower plants based on carbon-water-energy-ecosystem nexus

X Liu, S Xiao, H Pan, X Zheng, W Han, C Huang… - Energy Conversion and …, 2022 - Elsevier
Hydropower plants are generally recognized as a climate-friendly approach to meeting
growing energy demand, whereas the greenhouse gases from reservoirs and their …

Efficient generation of sum-of-products representations of high-dimensional potential energy surfaces based on multimode expansions

B Ziegler, G Rauhut - The Journal of Chemical Physics, 2016 - pubs.aip.org
The transformation of multi-dimensional potential energy surfaces (PESs) from a grid-based
multimode representation to an analytical one is a standard procedure in quantum chemical …

Rigorous use of symmetry within the construction of multidimensional potential energy surfaces

B Ziegler, G Rauhut - The Journal of Chemical Physics, 2018 - pubs.aip.org
A method is presented, which allows for the rigorous use of symmetry within the construction
of multidimensional potential energy surfaces (PESs). This approach is based on a crude …

A general code for fitting global potential energy surfaces via CHIPR method: Triatomic molecules

CMR Rocha, AJC Varandas - Computer Physics Communications, 2020 - Elsevier
A general program to fit global potential energy surfaces of ABC, AB 2, and A 3 triatomic
molecules to ab initio points is reported. It is based on the Combined-Hyperbolic-Inverse …

Time-dependent quantum mechanical wave packet dynamics

N Sathyamurthy, S Mahapatra - Physical Chemistry Chemical Physics, 2021 - pubs.rsc.org
Starting from a model study of the collinear (H, H2) exchange reaction in 1959, the time-
dependent quantum mechanical wave packet (TDQMWP) method has come a long way in …

On the choice of the ab initio level of theory for potential energy surface developments

G Czakó, I Szabó, H Telekes - The Journal of Physical Chemistry …, 2014 - ACS Publications
We test the accuracy of various standard, explicitly correlated F12, and composite ab initio
methods with different correlation consistent basis sets for high-dimensional potential …

Potential energy surface fitting by a statistically localized, permutationally invariant, local interpolating moving least squares method for the many-body potential …

JD Bender, S Doraiswamy, DG Truhlar… - The Journal of chemical …, 2014 - pubs.aip.org
Fitting potential energy surfaces to analytic forms is an important first step for efficient
molecular dynamics simulations. Here, we present an improved version of the local …