654 citations · 697 across the 3 of their papers we have counts for
3 papers
physics.chem-ph2015★ 41 cited
Landscape of an exact energy functional
Aron J. Cohen, Paula Mori-Sánchez
One of the great challenges of electronic structure theory is the quest for the exact functional of density functional theory. Its existence is proven, but it is a complicated mult…
cond-mat.other2009★ 2 cited
Failure of the random phase approximation correlation energy
Paula Mori-Sánchez, Aron J. Cohen, Weitao Yang
The random phase approximation (RPA) to the correlation energy is extended to fractional occupations and its performance examined for exact conditions on fractional charges and fra…
cond-mat.mtrl-sci2007★ 654 cited
Fractional charge perspective on the band-gap in density-functional theory
Aron J. Cohen, Paula Mori-Sánchez, Weitao Yang
The calculation of the band-gap by density-functional theory (DFT) methods is examined by considering the behavior of the energy as a function of number of electrons. It is found t…