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Off-diagonal long-range order in a supersymmetric integrable model of correlated electrons |
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| Authors: | J Links K Hibberd M Gould A Foerster |
| Institution: | Department of Mathematics, University of Queensland, St Lucia, QLD, 4072, Australia, AU Instítuto de Física da UFRGS, Av Bento Gon?alves 9500, Porto Alegre, RS, Brazil, BR |
| 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 pairing algebra as a subalgebra which is used to show that the model exhibits Off-Diagonal Long-Range Order in any number of dimensions. Received: 9 December 1997 / Revised: 12 February 1998 / Accepted: 17 March 1998 |
| Keywords: | PACS 75 10 Jm Quantized spin models - 71 27 +a Strongly correlated electron systems heavy fermions |
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