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cond-mat.str-el2013★ 3 cited
Variational optimization of the 2DM: approaching three-index accuracy using extended cluster constraints
Brecht Verstichel, Ward Poelmans, Stijn De Baerdemacker +2
The reduced density matrix is variationally optimized for the two-dimensional Hubbard model. Exploiting all symmetries present in the system, we have been able to study …
cond-mat.str-el2013★ 11 cited
Extensive v2DM study of the one-dimensional Hubbard model for large lattice sizes: Exploiting translational invariance and parity
Brecht Verstichel, Helen van Aggelen, Ward Poelmans +2
Using variational density matrix optimization with two- and three-index conditions we study the one-dimensional Hubbard model with periodic boundary conditions at various filling f…