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Abstract: The Grassmann structure of the critical XXZ spin chain is studied in thelimit to conformal field theory. A new description of Virasoro Verma modules isproposed in terms of Zamolodchikov-s integrals of motion and two families offermionic creation operators. The exact relation to the usual Virasorodescription is found up to level 6.



Autor: H. Boos, M. Jimbo, T. Miwa, F. Smirnov

Fuente: https://arxiv.org/







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