ELEMENTARY EXCITATIONS FOR THE ONE-DIMENSIONAL HUBBARD-MODEL AT FINITE TEMPERATURES

Authors
TOMIYAMA A SUGA S OKIJI A
Citation
A. Tomiyama et al., ELEMENTARY EXCITATIONS FOR THE ONE-DIMENSIONAL HUBBARD-MODEL AT FINITE TEMPERATURES, Journal of physics. Condensed matter, 9(27), 1997, pp. 5837-5851
Citations number
16
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
9
Issue
27
Year of publication
1997
Pages
5837 - 5851
Database
ISI
SICI code
0953-8984(1997)9:27<5837:EEFTOH>2.0.ZU;2-3
Abstract
The elementary excitations for the one-dimensional Hubbard model at fi nite temperatures are studied with the use of the Bethe ansatz Solutio n. The formulation is based on the method of Yang and Yang, which was developed for the one-dimensional boson systems with the delta-functio n type interaction. The dispersion relations and the excitation spectr ums are obtained numerically for the charge and the spin degrees of fr eedom.