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 …

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) …

Multicomponent density functional theory: Impact of nuclear quantum effects on proton affinities and geometries

KR Brorsen, Y Yang… - The Journal of Physical …, 2017 - ACS Publications
Nuclear quantum effects such as zero point energy play a critical role in computational
chemistry and often are included as energetic corrections following geometry optimizations …

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 …

Multicomponent coupled cluster singles and doubles with density fitting: Protonated water tetramers with quantized protons

F Pavošević, Z Tao… - The Journal of Physical …, 2021 - ACS Publications
Nuclear quantum effects such as zero-point energy are important for describing a wide
range of chemical properties. The nuclear− electronic orbital (NEO) approach incorporates …

Quantum proton effects from density matrix renormalization group calculations

R Feldmann, A Muolo, A Baiardi… - Journal of Chemical …, 2022 - ACS Publications
We recently introduced [J. Chem. Phys. 2020, 152, 204103] the nuclear-electronic all-
particle density matrix renormalization group (NEAP-DMRG) method to solve the molecular …

The any particle molecular orbital approach: A short review of the theory and applications

A Reyes, F Moncada, J Charry - International Journal of …, 2019 - Wiley Online Library
The any particle molecular orbital (APMO) approach extends regular electronic structure
methods to study atomic and molecular systems in which electrons and other particles are …

LOWDIN: The any particle molecular orbital code

R Flores‐Moreno, E Posada, F Moncada… - … Journal of Quantum …, 2014 - Wiley Online Library
LOWDIN is a computational program that implements the Any Particle Molecular Orbital
(APMO) method. The current version of the code encompasses Hartree–Fock, second‐order …

[HTML][HTML] Multicomponent coupled cluster singles and doubles and Brueckner doubles methods: Proton densities and energies

F Pavošević, S Hammes-Schiffer - The Journal of Chemical Physics, 2019 - pubs.aip.org
The nuclear-electronic orbital (NEO) framework enables computationally practical coupled
cluster calculations of multicomponent molecular systems, in which all electrons and …

Calculation of positron binding energies using the generalized any particle propagator theory

J Romero, JA Charry, R Flores-Moreno… - The Journal of …, 2014 - pubs.aip.org
We recently extended the electron propagator theory to any type of quantum species based
in the framework of the Any-Particle Molecular Orbital (APMO) approach [J. Romero, E …