The finite temperature properties of the massive Thirring model and the quantum sine-Gordon model

Masatoshi Imada, Kazuo Hida, Masakatsu Ishikawa

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The thermodynamics of the massive Thirring model is discussed with the help of the Bethe Ansatz approach in a way different from Fowler and Zotos (1982). In particular a finite Debye cut-off is introduced to investigate effects of the lattice discreteness. The specific heat seems to have a structure as a sum of the Debye-type specific heat and a 'soliton' peak, when the authors take into account the relation of the massive Thirring model to the quantum sine-Gordon model. The finite temperature excitations are calculated. The excitation energy proposed by Fowler and Zotos is shown to have significance which is insensitive to the way of formulation.

Original languageEnglish
Article number008
Pages (from-to)35-48
Number of pages14
JournalJournal of Physics C: Solid State Physics
Volume16
Issue number1
DOIs
Publication statusPublished - 1983 Dec 1
Externally publishedYes

ASJC Scopus subject areas

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

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