The dilute A4 model, the E7 mass spectrum and the tricritical ising model

K. A. Seaton*, M. T. Batchelor

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    The exact perturbation approach is used to derive the (seven) elementary correlation lengths and related mass gaps of the two-dimensional dilute A4 lattice model in regime 2- from the Bethe Ansatz solution. This model provides a realization of the integrable φ(1,2) perturbation of the c = 7/10 conformal field theory, which is known to describe the off-critical thermal behavior of the tricritical Ising model. The E7 masses predicted from purely elastic scattering theory follow in the approach to criticality. Universal amplitudes for the tricritical Ising model are calculated.

    Original languageEnglish
    Pages (from-to)2636-2653
    Number of pages18
    JournalJournal of Mathematical Physics
    Volume43
    Issue number5
    DOIs
    Publication statusPublished - 1 May 2002

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