Fibonacci-Hubbard Chain at Zero and Finite Temperatures

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We have studied finite-sized single band Hubbard chains with Fibonacci modulation for half filling within a mean field approximation. The ground state properties, together with the dc conductivity both at zero and non-zero temperatures, are calculated for such quasi-periodic Hubbard chains. While a reduction in the conductivity is found for strong electronic interaction or strong Fibonacci modulation, a competition between these two is observed to enhance the conductivity. The results at finite temperatures also illustrate some interesting features of such finite-sized systems.
20 pages, Latex, 9 figures (postscript)

Keywords

Strongly Correlated Electrons

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/20573

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0212515
 http://arxiv.org/abs/cond-mat/0212515

Collections

arXiv