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 …

Born–Oppenheimer and non-Born–Oppenheimer, atomic and molecular calculations with explicitly correlated Gaussians

S Bubin, M Pavanello, WC Tung, KL Sharkey… - Chemical …, 2013 - ACS Publications
Since the early work of Hylleraas on the helium atom, 1 it has been common knowledge that,
to accurately account for the interaction between the electrons in an atom or a molecule …

[图书][B] Relativistic quantum chemistry: the fundamental theory of molecular science

M Reiher, A Wolf - 2015 - books.google.com
Einstein proposed his theory of special relativity in 1905. For a long time it was believed that
this theory has no significant impact on chemistry. This view changed in the 1970s when it …

Multicomponent coupled cluster singles and doubles theory within the nuclear-electronic orbital framework

F Pavošević, T Culpitt… - Journal of chemical …, 2018 - ACS Publications
The nuclear-electronic orbital (NEO) method treats all electrons and specified nuclei,
typically protons, quantum mechanically on the same level with molecular orbital …

Molecular dynamics with constrained nuclear electronic orbital density functional theory: Accurate vibrational spectra from efficient incorporation of nuclear quantum …

X Xu, Z Chen, Y Yang - Journal of the American Chemical Society, 2022 - ACS Publications
Nuclear quantum effects play a crucial role in many chemical and biological systems
involving hydrogen atoms yet are difficult to include in practical molecular simulations. In this …

Divide-and-conquer linear-scaling quantum chemical computations

H Nakai, M Kobayashi, T Yoshikawa… - The Journal of …, 2023 - ACS Publications
Fragmentation and embedding schemes are of great importance when applying quantum-
chemical calculations to more complex and attractive targets. The divide-and-conquer (DC) …

Nuclear Quantum Effects Made Accessible: Local Density Fitting in Multicomponent Methods

L Hasecke, RA Mata - Journal of Chemical Theory and …, 2023 - ACS Publications
The simulation of nuclear quantum effects (NQEs) is crucial for an accurate description of
systems and processes involving light nuclei, such as hydrogen atoms. Within the last years …

Constrained nuclear-electronic orbital density functional theory with a dielectric continuum solvent model

X Xu - The Journal of Physical Chemistry A, 2023 - ACS Publications
Solvent effects are crucial for simulating chemical and biological processes in solutions. The
continuum solvation model is widely used for incorporating solvent effects with different …

Molecular structure calculations: A unified quantum mechanical description of electrons and nuclei using explicitly correlated Gaussian functions and the global vector …

E Mátyus, M Reiher - The Journal of Chemical Physics, 2012 - pubs.aip.org
We elaborate on the theory for the variational solution of the Schrödinger equation of small
atomic and molecular systems without relying on the Born–Oppenheimer paradigm. The all …

Pre-Born–Oppenheimer molecular structure theory

E Mátyus - Molecular Physics, 2019 - Taylor & Francis
ABSTRACT In pre-Born–Oppenheimer (pre-BO) theory a molecule is considered as a
quantum system as a whole, including the electrons and the atomic nuclei on the same …