2 citations · 2 across the 11 of their papers we have counts for
12 papers
DFT GGA based datasets for HO potential energy surfaces, permanent moment and polarizability tensors
Anoop Ajaya Kumar Nair, Elvar Örn Jónsson
We present in this article data on the computed potential energy surface, permanent moment surface (from dipole to hexadecapole) and polarizability surface (from dipole-dipole to q…
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.…
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…
Polarizable Embedding QM/MM for Periodic Systems
Julian Bessner, Anoop Ajaya Kumar Nair, Magnus Andreas Hilduberg Christiansen +3
A general polarizable embedded (PE) quantum mechanics/molecular mechanics scheme for periodic systems is presented, describing mutual polarization of the two subsystems. The QM sys…
Polaron Conductivity in -Fe2O3 Quenched by Adsorbed NO2
Tushar K. Ghosh, Elvar Ö. Jónsson, Stephan Steinhauer +2
Polaron-mediated charge transport in α-Fe2O3 plays a central role in its performance as a gas-sensing material, yet the atomistic interaction between surface adsorbates and polaron…
ChemFit: A framework for automated high-dimensional model parameter optimization
Moritz Sallermann, Amrita Goswami, Rosana Collepardo-Guevara +4
The parameterization of simulation-based models is a central yet laborious task in computational chemistry and physics, often driven by human intuition and manual iteration. Automa…
Locally Scaled Self-Interaction Corrected Energy Functionals with Complex Optimal Orbitals
Jukka John, Hlynur Guðmundsson, Iðunn Björg Arnaldsdóttir +2
We present a fully variational locally scaled self-interaction corrected (SIC) energy functional using complex optimal orbitals. This represents an important milestone for fully va…
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.…
Variational Calculations of the Excited States of the Charged NV-center in Diamond Using a Hybrid Functional
Lei Sun, Elvar Örn Jónsson, Aleksei Ivanov +2
The excited electronic states involved in the optical cycle preparation of a pure spin state of the negatively charged NV-defect in diamond are calculated using the HSE06 hybrid de…
Localised and Delocalised Charge Distribution in a Diamine Cation and Rydberg Excited State: A Challenging Test for Density Functionals
Benedikt O. Birgisson, Marta Gałyńska, Hemanadhan Myneni +3
The balance between localised and delocalised electron distribution in the N,N'-dimethylpiperazine (DMP) molecule in the 3s Rydberg excited state and in the fully ionised DMP p…
C-Pol: Point charge perturbation scheme for mapping tensor moment surfaces
Anoop Ajaya Kumar Nair, Julian Beßner, Timo Jacob +1
We present an efficient moment-based perturbation scheme for evaluating polarizability tensors of small molecules at a fraction of the computational cost of conventional energy-bas…
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…