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cond-mat.str-el2000★ 6 cited
Exact bounds on the ground-state energy of the infinite-U Hubbard model
Federico Becca, Luca Capriotti, Sandro Sorella +1
We give upper and lower bounds for the ground-state energy of the infinite-U Hubbard model. In two dimensions, using these bounds we are able to rule out the possibility of phase s…
cond-mat.str-el2000★ 52 cited
The Mott Metal-Insulator transition in the half-filled Hubbard model on the Triangular Lattice
Massimo Capone, Luca Capriotti, Federico Becca +1
We investigate the metal-insulator transition in the half-filled Hubbard model on a two-dimensional triangular lattice using both the Kotliar-Ruckenstein slave-boson technique, and…