Exploring chemistry with the fragment molecular orbital method

DG Fedorov, T Nagata, K Kitaura - Physical Chemistry Chemical …, 2012 - pubs.rsc.org
The fragment molecular orbital (FMO) method makes possible nearly linear scaling
calculations of large molecular systems, such as water clusters, proteins and DNA. In …

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 …

[HTML][HTML] Alternative forms and transferability of electron-proton correlation functionals in nuclear-electronic orbital density functional theory

KR Brorsen, PE Schneider… - The Journal of Chemical …, 2018 - pubs.aip.org
Multicomponent density functional theory (DFT) allows the consistent quantum mechanical
treatment of both electrons and nuclei. Recently the epc17 electron-proton correlation …

Nuclear-electronic all-particle density matrix renormalization group

A Muolo, A Baiardi, R Feldmann… - The Journal of chemical …, 2020 - pubs.aip.org
We introduce the Nuclear-Electronic All-Particle Density Matrix Renormalization Group
(NEAP-DMRG) method for solving the time-independent Schrödinger equation …

Development of the multicomponent coupled-cluster theory for investigation of multiexcitonic interactions

BH Ellis, S Aggarwal, A Chakraborty - Journal of chemical theory …, 2016 - ACS Publications
Multicomponent systems are defined as chemical systems that require a quantum
mechanical description of two or more different types of particles. Non-Born–Oppenheimer …

Quantum treatment of protons with the reduced explicitly correlated Hartree-Fock approach

A Sirjoosingh, MV Pak, KR Brorsen… - The Journal of …, 2015 - pubs.aip.org
The nuclear-electronic orbital (NEO) approach treats select nuclei quantum mechanically on
the same level as the electrons and includes nonadiabatic effects between the electrons and …

Multicomponent density functional theory study of the interplay between electron-electron and electron-proton correlation

A Sirjoosingh, MV Pak… - The Journal of Chemical …, 2012 - pubs.aip.org
The interplay between electron-electron and electron-proton correlation is investigated
within the framework of the nuclear-electronic orbital density functional theory (NEO-DFT) …

Derivation of an electron–proton correlation functional for multicomponent density functional theory within the nuclear–electronic orbital approach

A Sirjoosingh, MV Pak… - Journal of Chemical …, 2011 - ACS Publications
Multicomponent density functional theory enables the quantum mechanical treatment of
electrons and selected hydrogen nuclei. An electron–proton correlation functional is derived …

Reduced explicitly correlated Hartree-Fock approach within the nuclear-electronic orbital framework: Theoretical formulation

A Sirjoosingh, MV Pak, C Swalina… - The Journal of chemical …, 2013 - pubs.aip.org
The nuclear-electronic orbital (NEO) method treats electrons and select nuclei quantum
mechanically on the same level to extend beyond the Born-Oppenheimer approximation …

[HTML][HTML] Multicomponent density functional theory embedding formulation

T Culpitt, KR Brorsen, MV Pak… - The Journal of Chemical …, 2016 - pubs.aip.org
Multicomponent density functional theory (DFT) methods have been developed to treat two
types of particles, such as electrons and nuclei, quantum mechanically at the same level. In …