92 citations · 159 across the 2 of their papers we have counts for
2 papers
cond-mat.mes-hall2008★ 67 cited
Linear density response function within the time-dependent exact-exchange approximation
Maria Hellgren, Ulf von Barth
We have calculated the frequency-dependent exact exchange (EXX) kernel of time-dependent (TD) density functional theory employing our recently proposed computational method based o…
cond-mat.other2007★ 92 cited
The correlation potential in density functional theory at the GW-level: spherical atoms
M. Hellgren, U. von Barth
As part of a project to obtain better optical response functions for nano materials and other systems with strong excitonic effects we here calculate the exchange-correlation (XC)…