4 papers
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…
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.…
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…
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…