Commensurate-incommensurate crossover in quantum sine-Gordon model

K. Hida, Masatoshi Imada, M. Ishikawa

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Abstract

The thermodynamics of the quantum sine-Gordon model with finite winding numbers is investigated by the Bethe ansatz method. The temperature dependences of the specific heat and the winding number are calculated. The crossover from the case with the commensurate ground state to that with the incommensurate ground state is discussed. The quantum effect is shown to be significant in the thermodynamic properties of the system.

Original languageEnglish
Article number004
Pages (from-to)4945-4958
Number of pages14
JournalJournal of Physics C: Solid State Physics
Volume16
Issue number25
DOIs
Publication statusPublished - 1983 Dec 1
Externally publishedYes

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)
  • Physics and Astronomy(all)

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