activity
20232026
most citedOrbital-optimized versus time-dependent density functional calculations of intramolecular charge transfer excited states

30 citations · 39 across the 12 of their papers we have counts for

collaborators

12 papers

physics.chem-ph2026

Excited-state Properties Beyond the Excitation Energy from Orbital-Optimized Density Functional Calculations II: Absorption Spectra

Lorenzo Restaino, Diego Llorena Prieto, Jukka John +4

Previous benchmarks of orbital-optimized density functional calculations of transition intensities in molecules have primarily been restricted to the lowest electronic excitation.…

physics.chem-ph2026

Excited-state Properties Beyond the Excitation Energy from Orbital-Optimized Density Functional Calculations I: Dipole Moments of Rydberg States

Lorenzo Restaino, Jukka John, Diego Llorena Prieto +4

Rydberg excited states are challenging to describe due to their highly diffuse character. Orbital-optimized density functional calculations typically provide more accurate values o…

physics.chem-ph2026

Orbital-optimized density functional calculations of excited electronic states: Recent advances and perspectives

Lorenzo Restaino, Giulia Gamboni, Elli Selenius +1

Orbital-optimized (OO) density functional calculations provide a time-independent, variational route to electronic excitations, alternative to presently widely used time-dependent…

physics.chem-ph2026

Valence and Rydberg excited state bond dissociation curves of CO2 from orbital-optimized density functional calculations

Darío Barreiro-Lage, Gianluca Levi, Hannes Jonssón +1

Calculations of the lowest valence π* as well as the 3s and higher energy 3pσ Rydberg excited states of the CO2 molecule are carried out using density functionals with variational…

physics.chem-ph2025

Natural-Orbital-Based Neural Network Configuration Interaction

Louis Thirion, Yorick L. A. Schmerwitz, Max Kroesbergen +5

Selective configuration interaction methods approximate correlated molecular ground- and excited states by considering only the most relevant Slater determinants in the expansion.…

physics.chem-ph2025

Orbital Optimization and Neural-Network-Assisted Configuration Interaction Calculations of Rydberg States

Gianluca Levi, Max Kroesbergen, Louis Thirion +5

Rydberg excited states of molecules pose a challenge for electronic structure calculations because of their highly diffuse electron distribution. Even large and elaborate atomic ba…

physics.chem-ph2025★ 6 cited

Freeze-and-release direct optimization method for variational calculations of excited electronic states

Yorick L. A. Schmerwitz, Elli Selenius, Gianluca Levi

Variational optimization of orbitals in time-independent density functional calculations of excited electronic states presents a significant challenge, as excited states typically…

physics.chem-ph2024★ 2 cited

A Neural-Network-Based Selective Configuration Interaction Approach to Molecular Electronic Structure

Yorick L. A. Schmerwitz, Louis Thirion, Gianluca Levi +4

By combining Hartree-Fock with a neural-network-supported quantum-cluster solver proposed recently in the context of solid-state lattice models, we formulate a scheme for selective…

physics.chem-ph2024

Fine Tuning of the Rotational Rate of Light-Driven, Second Generation Molecular Motors by Fluorine Substitutions

Ivan Tambovtsev, Yorick L. A. Schmerwitz, Gianluca Levi +4

The relaxation time of several second generation molecular motors is analysed by calculating the minimum energy path between the metastable and stable states and evaluating the tra…

physics.chem-ph2024★ 1 cited

Saddle Point Search Algorithms for Variational Density Functional Calculations of Excited Electronic States with Self-Interaction Correction

Yorick Leonard Adrian Schmerwitz, Núria Urgell Ollé, Gianluca Levi +1

Excited electronic states of molecules and solids play a fundamental role in fields such as catalysis and electronics. In electronic structure calculations, excited states typicall…

physics.chem-ph2023★ 30 cited

Orbital-optimized versus time-dependent density functional calculations of intramolecular charge transfer excited states

Elli Selenius, Alec Elías Sigurdarson, Yorick L. A. Schmerwitz +1

The performance of time-independent, orbital optimized calculations of excited states is assessed with respect to charge transfer excitations in organic molecules in comparison to…

physics.chem-ph2023

Orbital-optimized Density Functional Calculations of Molecular Rydberg Excited States with Real Space Grid Representation and Self-Interaction Correction

Alec E. Sigurðarson, Yorick L. A. Schmerwitz, Dagrún K. V. Tveiten +2

Density functional calculations of Rydberg excited states up to high energy are carried out for several molecules using an approach where the orbitals are variationally optimized b…