Exact bounds on the ground-state energy of the infinite-U Hubbard model

Authors
Becca, F Capriotti, L Sorella, S Parola, A
Citation
F. Becca et al., Exact bounds on the ground-state energy of the infinite-U Hubbard model, PHYS REV B, 62(23), 2000, pp. 15277-15278
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
23
Year of publication
2000
Pages
15277 - 15278
Database
ISI
SICI code
0163-1829(200012)62:23<15277:EBOTGE>2.0.ZU;2-S
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 star e and a hole-rich state.