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Form factors, deformed Knizhnik-Zamolodchikov equations and finite-gap integration

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Abstract

We study the limit of asymptotically free massive integrable models in which the algebra of nonlocal charges turns into affine algebra. The form factors of fields in that limit are described by KZ equations on level 0. We show the limit to be connected with finite-gap integration of classical integrable equations.

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Authors and Affiliations

  1. Isaac Newton Institute, CB3 0EH, Cambridge, U.K.

    Fedor A. Smirnov

  2. Steklov Mathematical Institute, 191011, St. Petersburg, Russian Federation

    Fedor A. Smirnov

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  1. Fedor A. Smirnov
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Communicated by G. Felder

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Smirnov, F.A. Form factors, deformed Knizhnik-Zamolodchikov equations and finite-gap integration. Commun.Math. Phys. 155, 459–487 (1993). https://doi.org/10.1007/BF02096723

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  • DOI: https://doi.org/10.1007/BF02096723

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