activity
20212026
most citedElectron correlation in the Iron(II) Porphyrin by NOF approximations

17 citations · 18 across the 9 of their papers we have counts for

collaborators

9 papers

physics.chem-ph2026

Electronic Structure Calculations from Occupation Numbers on Quantum Computers

Edison X. Salazar, Juan Felipe Huan Lew-Yee, and Mario Piris

We present a quantum-classical algorithm for electronic structure calculations that dramatically reduces the quantum measurement cost of variational quantum eigensolver (VQE) appro…

physics.chem-ph2025

DoNOF 2.0: A modern Open-Source Electronic Structure Program for Natural Orbital Functionals

Juan Felipe Huan Lew-Yee, Ion Mitxelena, Jorge M. del Campo +1

In this work, we present the second version of the Donostia Natural Orbital Functional Software, an open-source program for natural orbital functional calculations. The new release…

physics.chem-ph2025

5- and 6-membered rings: A natural orbital functional study

Ion Mitxelena, Juan Felipe Huan Lew-Yee, Mario Piris

The Global Natural Orbital Functional (GNOF) provides a straightforward approach to capture most electron correlation effects without needing perturbative corrections or limited ac…

cond-mat.str-el2025

Metal-Insulator Transition described by Natural Orbital Functional Theory

Juan Felipe Huan Lew-Yee, Mario Piris

The metal-insulator transition (MIT) is a fundamental phenomenon in condensed matter physics and a hallmark of strong electronic correlations. Hydrogen-based systems offer a simple…

physics.chem-ph2025

Enhancing the Computational Efficiency of the DoNOF Program through a New Orbital Sorting Scheme

Élodie Boutou, Juan Felipe Huan Lew-Yee, Jose Maria Mercero +1

This work presents a novel approach to distribute orbitals into subspaces within electron-pairing-based natural orbital functionals (NOFs). This approach modifies the coupling betw…

cond-mat.str-el2024★ 1 cited

Advancing Natural Orbital Functional Calculations Through Deep Learning-Inspired Techniques for Large-Scale Strongly Correlated Electron Systems

Juan Felipe Huan Lew-Yee, Jorge M. del Campo, Mario Piris

Natural orbital functional (NOF) theory offers a promising approach for studying strongly correlated systems at an affordable computational cost, with an accuracy comparable to hig…

physics.chem-ph2023

Excited states by coupling Piris natural orbital functionals with extended random phase approximation

Juan Felipe Huan Lew-Yee, Iván Alejandro Bonfil-Rivera, Mario Piris +1

In this work, we extend the Piris natural orbital functionals (PNOFs) to excited states by coupling their reconstructed second-order reduced density matrices with the extended rand…

physics.chem-ph2022★ 17 cited

Electron correlation in the Iron(II) Porphyrin by NOF approximations

Juan Felipe Huan Lew-Yee, Jorge M. del Campo, Mario Piris

The relative stability of the singlet, triplet, and quintet spin states of Iron(II) porphyrin (FeP) represents a challenging problem for electronic structure methods. While it is c…

physics.chem-ph2021

Resolution of the identity approximation applied to PNOF correlation calculations

Juan Felipe Huan Lew-Yee, Mario Piris, Jorge M. del Campo

In this work, the required algebra to employ the resolution of the identity approximation within Piris Natural Orbital Functional (PNOF) is developed, leading to an implementation…