We give upper and lower bounds fur 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 separation between the undoped-insulating stare and a hole-rich state.
Exact bounds on the ground-state energy of the infinite-U Hubbard model / Becca, F; Capriotti, L; Sorella, S; Parola, A. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - 62:23(2000), pp. 15277-15278. [10.1103/PhysRevB.62.15277]
Exact bounds on the ground-state energy of the infinite-U Hubbard model
Becca F;Sorella S;
2000-01-01
Abstract
We give upper and lower bounds fur 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 separation between the undoped-insulating stare and a hole-rich state.File in questo prodotto:
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