Density functional theory is straying from the path toward the exact functional
The theorems at the core of density functional theory (DFT) state that the energy of a many-
electron system in its ground state is fully defined by its electron density distribution. This …
electron system in its ground state is fully defined by its electron density distribution. This …
Is the accuracy of density functional theory for atomization energies and densities in bonding regions correlated?
The development of approximate exchange-correlation functionals is critical for modern
density functional theory. A recent analysis of atomic systems suggested that some modern …
density functional theory. A recent analysis of atomic systems suggested that some modern …
Accurate density functional made more versatile
We propose a one-electron self-interaction-free correlation energy functional compatible
with the order-of-limit problem-free Tao–Mo (TM) semilocal functional (regTM)[J. Tao and Y …
with the order-of-limit problem-free Tao–Mo (TM) semilocal functional (regTM)[J. Tao and Y …
Unveiling the physics behind hybrid functionals
S Śmiga, LA Constantin - The Journal of Physical Chemistry A, 2020 - ACS Publications
We show that accurate exchange–correlation hybrid functionals give very physically
optimized effective-correlation potentials, capable of correctly describing the quantum …
optimized effective-correlation potentials, capable of correctly describing the quantum …
Self-consistent implementation of Kohn–Sham adiabatic connection models with improved treatment of the strong-interaction limit
Adiabatic connection models (ACMs), which interpolate between the limits of weak and
strong interaction, are powerful tools to build accurate exchange–correlation functionals. If …
strong interaction, are powerful tools to build accurate exchange–correlation functionals. If …
[HTML][HTML] Improving the applicability of the Pauli kinetic energy density based semilocal functional for solids
The Pauli kinetic energy enhancement factor α=(τ− τ W)/τ unif is an important density
ingredient, used to construct many meta-generalized gradient approximations (meta-GGA) …
ingredient, used to construct many meta-generalized gradient approximations (meta-GGA) …
Conceptual insights into DFT spin‐state energetics of octahedral transition‐metal complexes through a density difference analysis
B Pinter, A Chankisjijev, P Geerlings… - … A European Journal, 2018 - Wiley Online Library
In this study, an intuitive concept is derived, which explains the characteristic dependence of
spin‐state energetics on the exact exchange admixture of DFT functionals in the case of …
spin‐state energetics on the exact exchange admixture of DFT functionals in the case of …
Interaction-strength interpolation method for main-group chemistry: Benchmarking, limitations, and perspectives
E Fabiano, P Gori-Giorgi, M Seidl… - Journal of Chemical …, 2016 - ACS Publications
We have tested the original interaction-strength-interpolation (ISI) exchange-correlation
functional for main group chemistry. The ISI functional is based on an interpolation between …
functional for main group chemistry. The ISI functional is based on an interpolation between …
Generalizing double-hybrid density functionals: Impact of higher-order perturbation terms
Connections between the Görling–Levy (GL) perturbation theory and the parameters of
double-hybrid (DH) density functional are established via adiabatic connection formalism …
double-hybrid (DH) density functional are established via adiabatic connection formalism …
Investigation of the exchange-correlation potentials of functionals based on the adiabatic connection interpolation
We have studied the correlation potentials produced by various adiabatic connection
models (ACMs) for several atoms and molecules. The results have been compared to …
models (ACMs) for several atoms and molecules. The results have been compared to …