THE ASYMMETRIC HUBBARD-MODEL ON A 2-DIMENSIONAL CLUSTER

Authors
DOMANSKI Z LEMANSKI R FATH G
Citation
Z. Domanski et al., THE ASYMMETRIC HUBBARD-MODEL ON A 2-DIMENSIONAL CLUSTER, Journal of physics. Condensed matter, 8(17), 1996, pp. 261-264
Citations number
12
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
8
Issue
17
Year of publication
1996
Pages
261 - 264
Database
ISI
SICI code
0953-8984(1996)8:17<261:TAHOA2>2.0.ZU;2-K
Abstract
An interaction between two heavy electrons mediated by two light elect rons is investigated within the asymmetric Hubbard model on a square c luster with 6 x 6 sites. The pair correlation function describing the probabilities of all relative positions of the heavy electrons is calc ulated by an approximative method. An effective attraction is found to exist in a certain range of model parameters.