Thermodynamics of an integrable model for electrons with correlated hopping

authored by

Gerald Bedürftig, Holger Frahm

Abstract

A new supersymmetric model for electrons with generalized hopping terms and Hubbard interaction on a one-dimensional lattice is solved by means of the Bethe ansatz. We investigate the phase diagram of this model by studying the ground state and excitations of the model as a function of the interaction parameter, electronic density and magnetization. Using arguments from conformal field theory we can study the critical exponents describing the asymptotic behaviour of correlation functions at long distances.

Organisation(s)

Institute of Theoretical Physics

Type

Article

Journal

Journal of Physics A: Mathematical and General

Volume

28

Pages

4453-4468

No. of pages

16

ISSN

0305-4470

Publication date

21.08.1995

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Statistical and Nonlinear Physics, Mathematical Physics, Physics and Astronomy(all)

Electronic version(s)

https://arxiv.org/abs/cond-mat/9504103 (Access: Open)
https://doi.org/10.1088/0305-4470/28/16/006 (Access: Unknown)