Ground-state properties of the two-dimensional disordered Hubbard model

Authors
Caldara, G Srinivasan, B Shepelyansky, DL
Citation
G. Caldara et al., Ground-state properties of the two-dimensional disordered Hubbard model, PHYS REV B, 62(16), 2000, pp. 10680-10686
Citations number
25
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
16
Year of publication
2000
Pages
10680 - 10686
Database
ISI
SICI code
0163-1829(20001015)62:16<10680:GPOTTD>2.0.ZU;2-K
Abstract
We study the ground state of the two-dimensional disordered Hubbard model b y means of the projector quantum Monte Carlo method. This approach allows u s to investigate the ground-state properties of this model for lattice size s up to 10x10, at quarter filling, for a broad range of interaction and dis order strengths. Our results show that the ground state of this system of s pin-1/2 fermions remains localized in the presence of the short-ranged Hubb ard interaction.