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The European Physical Journal B
ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)
Abstract Volume 5 Issue 3 (1998) pp 309-312
Off-diagonal long-range order in a supersymmetric integrable model of correlated electrons
J. Links (1) (a), K. Hibberd (1), M. Gould (1), A. Foerster (2)
(1) Department of Mathematics, University of Queensland, St Lucia, QLD, 4072, Australia
(2) Instítuto de Física da UFRGS, Av Bento Gonçalves 9500, Porto Alegre, RS, Brazil
Received: 9 December 1997 / Revised: 12 February 1998 / Accepted: 17 March 1998
Abstract: A new model for correlated electrons is presented which is integrable in one-dimension. The symmetry algebra of the model is the Lie superalgebra gl(2|1) which depends on a continuous free parameter. This symmetry algebra contains the $\eta$ pairing algebra as a subalgebra which is used to show that the model exhibits Off-Diagonal Long-Range Order in any number of dimensions.
PACS. 75.10.Jm Quantized spin models - 71.27.+a Strongly correlated electron systems; heavy fermions
(a) email: jrl@maths.uq.edu.au
Article in PDF format (235 KB)
Online publication: October 26, 1998
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