21 citations · 22 across the 2 of their papers we have counts for
2 papers
cond-mat.str-el2008★ 1 cited
Parametrized canonical transformation for the Hubbard-model at arbitrary interaction strength
Balazs Hetenyi, Hans Gerd Evertz
The and Heisenberg models are truncated expansions of a canonically transformed Hubbard model coinciding with it at . We show that a modified canonical transform…
cond-mat.other2008★ 21 cited
Extended Hartree-Fock method based on pair density functional theory
Balazs Hetenyi, Andreas W. Hauser
A practical electronic structure method in which a two-body functional is the fundamental variable is constructed. The basic formalism of our method is equivalent to Hartree-Fock d…