1.
Phys Rev Lett
; 99(20): 206401, 2007 Nov 16.
Artigo
em Inglês
| MEDLINE
| ID: mdl-18233165
RESUMO
We determine the quantum phase diagram of the one-dimensional Hubbard model with bond-charge interaction X in addition to the usual Coulomb repulsion U>0 at half-filling. For large enough X