A ONE-DIMENSIONAL INTEGRABLE MODEL OF FERMIONS WITH MULTIPARTICLE HOPPING

Authors
BARIEV RZ KLUMPER A SCHADSCHNEIDER A ZITTARTZ J
Citation
Rz. Bariev et al., A ONE-DIMENSIONAL INTEGRABLE MODEL OF FERMIONS WITH MULTIPARTICLE HOPPING, Journal of physics. A, mathematical and general, 28(9), 1995, pp. 2437-2444
Citations number
23
Categorie Soggetti
Physics
Journal title
Journal of physics. A, mathematical and general → ACNP
ISSN journal
03054470
Volume
28
Issue
9
Year of publication
1995
Pages
2437 - 2444
Database
ISI
SICI code
0305-4470(1995)28:9<2437:AOIMOF>2.0.ZU;2-7
Abstract
A model with both single-particle and multi-particle hopping of electr ons on a one-dimensional 'triangular' lattice is formulated and solved exactly by Bethe ansatz. On the basis of the exact calculation of the asymptotic behaviour of correlation functions we find a transition be tween the normal state and a state with a tendency to 'superconductivi ty'. The latter state is confined to small densities of electrons up t o a critical density rho(c).