291 citations · 2.3k across the 58 of their papers we have counts for
6 papers · 1 filter
Advantageous nearsightedness of many-body perturbation theory contrasted with Kohn-Sham density functional theory
Jack Wetherell, Matthew Hodgson, Leopold Talirz +1
For properties of interacting electron systems, Kohn-Sham (KS) theory is often favored over many-body perturbation theory (MBPT) owing to its low computational cost. However, the e…
Exact exchange-correlation kernels for optical spectra of model systems
Mike Entwistle, Rex Godby
For two prototype systems, we calculate the exact exchange-correlation kernels of time-dependent density functional theory. , the key qua…
Accuracy of electron densities obtained via Koopmans-compliant hybrid functionals
A. R. Elmaslmane, Jack Wetherell, M. J. P. Hodgson +2
We evaluate the accuracy of electron densities and quasiparticle energy gaps given by hybrid functionals by directly comparing these to the exact quantities obtained from solving t…
Comparison of local density functionals based on electron gas and finite systems
Mike Entwistle, Michele Casula, Rex Godby
A widely used approximation to the exchange-correlation functional in density functional theory is the local density approximation (LDA), typically derived from the properties of t…
self-screening error and its correction using a local density functional
Jack Wetherell, Matthew Hodgson, Rex Godby
The self-screening error in electronic structure theory is the part of the self-interaction error that would remain within the approximation if the exact dynamically screened…
Metrics for two electron random potential systems
A. H. Skelt, R. W. Godby, I. D'Amico
Metrics have been used to investigate the relationship between wavefunction distances and density distances for families of specific systems. We extend this research to look at ran…