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cond-mat.other2009★ 72 cited
Excitation spectra of strongly correlated lattice bosons and polaritons
Peter Pippan, Hans Gerd Evertz, Martin Hohenadler
Spectral properties of the Bose-Hubbard model and a recently proposed coupled-cavity model are studied by means of quantum Monte Carlo simulations in one dimension. Both models exh…
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…