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Sutherland models for complex reflection groups
Authors:N Crampé  CAS Young
Institution:1. International School for Advanced Studies, Via Beirut 2-4, 34014 Trieste, Italy;2. Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy;3. Department of Mathematical Sciences, University of Durham, South Road, Durham DH1 3LE, UK
Abstract:There are known to be integrable Sutherland models associated to every real root system, or, which is almost equivalent, to every real reflection group. Real reflection groups are special cases of complex   reflection groups. In this paper we associate certain integrable Sutherland models to the classical family of complex reflection groups. Internal degrees of freedom are introduced, defining dynamical spin chains, and the freezing limit taken to obtain static chains of Haldane–Shastry type. By considering the relation of these models to the usual BCNBCN case, we are led to systems with both real and complex reflection groups as symmetries. We demonstrate their integrability by means of new Dunkl operators, associated to wreath products of dihedral groups.
Keywords:02  30  Ik  03  65  Fd  75  10  Jm
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