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 …

Capturing Correlation Effects in Positron Binding to Atoms and Molecules

S Upadhyay, A Benali, KD Jordan - Journal of Chemical Theory …, 2024 - ACS Publications
A major challenge in contemporary electronic structure theory involves the development of
methods to describe in a balanced manner the contribution of correlation effects to energy …

Fast and accurate prediction of proton affinities: revisiting the extended Koopmans' theorem for protons

L Pedraza-González, J Charry, W Quintero… - Physical Chemistry …, 2017 - pubs.rsc.org
In this work we propose schemes based on the extended Koopmans' theorem for quantum
nuclei (eKT), in the framework of the any particle molecular orbital approach (APMO/KT), for …

Theoretical Treatment of Weakly Bound Fermions to Atoms, Molecules, and Clusters

S Upadhyay - 2023 - search.proquest.com
Certain atoms, molecules, and clusters can bind an excess electron or positron in a diffuse
orbital. Given the weak binding energy of these states, usually on the order of tens to …

Development of a multicomponent wavefunction-in-DFT embedding methodology

FS Moncada Arias - 2021 - repositorio.unal.edu.co
This thesis presents theoretical developments, computational implementations, and
numerical applications of multicomponent methodologies that describe positron-molecule …