Centre of quantum group in roots of unity and the restriction of integrable models
Abstract
We show the connection between the extended centre of the quantum group in roots of unity and the restriction of the XXZ model. We also give explicit expressions for operators that respect the restriction and act on the state space of the restricted models. The formulae for these operators are verified by explicit calculation for thirddegree roots; they are conjectured to hold in the general case.
Talk given at the RAQIS03 conference, Aneccy, 2528/03/03.
 Publication:

Journal of Physics A Mathematical General
 Pub Date:
 January 2004
 DOI:
 10.1088/03054470/37/2/003
 arXiv:
 arXiv:hepth/0305209
 Bibcode:
 2004JPhA...37..317B
 Keywords:

 High Energy Physics  Theory
 EPrint:
 9 pages,LaTeX,corrected typos