Path-integral approach to the statistical mechanics of solitons

Kok-Ming Leung

    Research output: Contribution to journalArticle

    Abstract

    Universal features for the statistical mechanics of a general class of systems with a one-component field in one dimension have been obtained using path-integral techniques in a physically revealing and more direct way than was possible before from the transfer-operator method. Results are also extended to systems that can support more than one type of soliton. Spin-wave and soliton contributions are calculated simultaneously, thus enabling us to investigate the relative importance of spin-wave and soliton contributions in a given physical quantity. These general results are then applied to the double-sine-Gordon model. We discuss the statistical-mechanical properties of the model as the parameters are varied. Assessments of the validity of our results are also made.

    Original languageEnglish (US)
    Pages (from-to)226-244
    Number of pages19
    JournalPhysical Review B
    Volume26
    Issue number1
    DOIs
    StatePublished - 1982

    Fingerprint

    Statistical mechanics
    Solitons
    statistical mechanics
    Spin waves
    solitary waves
    magnons
    mechanical properties
    operators
    Mechanical properties

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Path-integral approach to the statistical mechanics of solitons. / Leung, Kok-Ming.

    In: Physical Review B, Vol. 26, No. 1, 1982, p. 226-244.

    Research output: Contribution to journalArticle

    Leung, Kok-Ming. / Path-integral approach to the statistical mechanics of solitons. In: Physical Review B. 1982 ; Vol. 26, No. 1. pp. 226-244.
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