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ArticleOriginal scientific text

Title

Symmetries of an extended Hubbard Model

Authors 1, 1

Affiliations

  1. Sektion Physik, Universität München, LS Prof. Wess, Theresienstr. 37, D-80333 München, Germany

Abstract

The Hamiltonian for an extended Hubbard model with phonons as introduced by A. Montorsi and M. Rasetti is considered on a D-dimensional lattice. The symmetries of the model are studied in various cases. It is shown that for a certain choice of the parameters a superconducting SUq(2) holds as a true quantum symmetry, but only for D=1.

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Banach Center Publications
1997/40/1
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Pages:
361-368
Main language of publication
English
Published
1997
Exact and natural sciences