Absence of mass gap for a class of stochastic contour models

Alan D. Sokal, Lawrence E. Thomas

    Research output: Contribution to journalArticle

    Abstract

    We study a class of Markovian stochastic processes in which the state space is a space of lattice contours and the elementary motions are local deformations. We show, under suitable hypotheses on the jump rates, that the infinitesimal generator has zero mass gap. This result covers (among others) the BFACF dynamics for fixed-endpoint self-avoiding walks and the Sterling-Greensite dynamics for fixed-boundary self-avoiding surfaces. Our models also mimic the Glauber dynamics for the low-temperature Ising model. The proofs are based on two new general principles: the minimum hitting-time argument and the mean (or mean-exponential) hitting-time argument.

    Original languageEnglish (US)
    Pages (from-to)907-947
    Number of pages41
    JournalJournal of Statistical Physics
    Volume51
    Issue number5-6
    DOIs
    StatePublished - Jun 1988

    Fingerprint

    Hitting Time
    Markovian Process
    Glauber Dynamics
    Infinitesimal Generator
    Self-avoiding Walk
    Ising Model
    Stochastic Processes
    State Space
    Jump
    stochastic processes
    Cover
    Ising model
    Motion
    Zero
    generators
    Model
    Class

    Keywords

    • contour model
    • dynamic critical phenomena
    • Glauber dynamics
    • Markov chain
    • Markov process
    • mass gap
    • Monte Carlo
    • self-avoiding walk

    ASJC Scopus subject areas

    • Statistical and Nonlinear Physics
    • Physics and Astronomy(all)
    • Mathematical Physics

    Cite this

    Absence of mass gap for a class of stochastic contour models. / Sokal, Alan D.; Thomas, Lawrence E.

    In: Journal of Statistical Physics, Vol. 51, No. 5-6, 06.1988, p. 907-947.

    Research output: Contribution to journalArticle

    Sokal, Alan D. ; Thomas, Lawrence E. / Absence of mass gap for a class of stochastic contour models. In: Journal of Statistical Physics. 1988 ; Vol. 51, No. 5-6. pp. 907-947.
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