A Haldane-Shastry spin chain of BCN type in a constant magnetic field
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2005
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Atlantis Press
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Abstract
We compute the spectrum of the trigonometric Sutherland spin model of BCN type in the presence of a constant magnetic field. Using Polychronakos's freezing trick, we derive an exact formula for the partition function of its associated Haldane-Shastry spin chain.
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©2004 by A. Enciso, F. Finkel, A. González-López and M.A. Rodríguez.
We would like to dedicate this article to Professor Francesco Calogero in his 70th anniversary. This work was partially supported by the DGI under grant no. BFM2002–02646. A.E. acknowledges the financial support of the Spanish MEC through an FPU scholarship.