Form factors in the Bullough-Dodd-related models: The Ising model in a magnetic field

    Research output

    Abstract

    We consider a certain modification of the free-field representation of the form factors in the Bullough-Dodd model. The two-particle minimal form factors are eliminated from the construction. We consequently obtain a convenient representation for the multiparticle form factors, establish recurrence relations between them, and study their properties. We use the proposed construction to obtain the free-field representation of form factors for the lightest particles in the Φ1,2-perturbed minimal models. As an important example, we consider the Ising model in a magnetic field. We verify that the results obtained in the framework of the proposed free-field representation agree with the corresponding results obtained by solving the bootstrap equations.

    Original languageEnglish
    Pages (from-to)1518-1540
    Number of pages23
    JournalTheoretical and Mathematical Physics
    Volume173
    Issue number2
    DOIs
    Publication statusPublished - 1 Nov 2012

    Scopus subject areas

    • Statistical and Nonlinear Physics
    • Mathematical Physics

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