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physics.atom-ph2012★ 34 cited
Beyond the RPA on the cheap: improved correlation energies with the efficient "Radial Exchange Hole" kernel
Tim Gould
The "ACFD-RPA" correlation energy functional has been widely applied to a variety of systems to successfully predict energy differences, and less successfully predict absolute corr…
physics.atom-ph2012★ 43 cited
The flexible nature of exchange, correlation and Hartree physics: resolving "delocalization" errors in a 'correlation free' density functional
Tim Gould, John F. Dobson
By exploiting freedoms in the definitions of 'correlation', 'exchange' and 'Hartree' physics in ensemble systems we better generalise the notion of 'exact exchange' (EXX) to system…
physics.atom-ph2012★ 20 cited
Correlation energies beyond the random-phase approximation: ISTLS applied to spherical atoms and ions
Tim Gould, John F. Dobson
The inhomogeneous Singwi, Tosi, Land and Sjolander (ISTLS) correlation energy functional of Dobson, Wang and Gould [PRB {\bf 66} 081108(R) (2008)] has proved to be excellent at pre…