Scaling limit of the Z2 invariant inhomogeneous six-vertex model

Vladimir V. Bazhanov, Gleb A. Kotousov*, Sergii M. Koval, Sergei L. Lukyanov

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    The work contains a detailed study of the scaling limit of a certain critical, integrable inhomogeneous six-vertex model subject to twisted boundary conditions. It is based on a numerical analysis of the Bethe ansatz equations as well as the powerful analytic technique of the ODE/IQFT correspondence. The results indicate that the critical behaviour of the lattice system is described by the gauged SL(2) WZW model with certain boundary and reality conditions imposed on the fields. Our proposal revises and extends the conjectured relation between the lattice system and the Euclidean black hole non-linear sigma model that was made in the 2011 paper of Ikhlef, Jacobsen and Saleur.

    Original languageEnglish
    Article number115337
    JournalNuclear Physics B
    Volume965
    DOIs
    Publication statusPublished - Apr 2021

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