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cond-mat.str-el2016★ 9 cited
Adaptive cluster approximation for reduced density-matrix functional theory
Robert Schade, Peter E. Blöchl
A method, called the adaptive cluster approximation (ACA), for single-impurity Anderson models is proposed. It is based on reduced density-matrix functional theory, where the one-p…
cond-mat.str-el2015★ 34 cited
Reduced density-matrix functionals applied to the Hubbard dimer
Ebad Kamil, Robert Schade, Thomas Pruschke +1
Common density-matrix functionals, the Müller and the power functional, have been benchmarked for the half-filled Hubbard dimer, which allows to model the bond dissociation problem…