SIMPLE REPRESENTATION OF THE EIGENSTATES OF THE U-]INFINITY ONE-DIMENSIONAL HUBBARD-MODEL

• Type: Article in International Scientific Journal
• Date: 1992

Authors

DIAS, RG (Author) Other; DOSSANTOS, JMBL (Author) FCUP

Journal

Title: Journal de Physique, I

Vol. 2

Pages: 1889-1897

ISSN: 1155-4304

Publisher: Les Editions de physique

Indexing

ISI Web of Knowledge - 13 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-001-P4B

Abstract (EN): We have constructed an exact map of the U --> infinity one dimensional Hubbard Hamiltonian onto a system of free fermions related to the charge degrees of freedom (holons). The spin configuration only influences the energy in so far as the fermions move in a loop which is threaded by a fictitious magnetic flux proportional to the spin configuration's total momentum. A rather simple and physically appealing interpretation of some of the features of the Bethe Ansatz solution is possible in this representation. We illustrated its use with a calculation of the t/U corrections to the energy.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9