Quantum field ground state of the sine-Gordon model with finite soliton density: Exact results

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Abstract

The Bethe ansatz solutions of the massive Thirring model are renormalised and used to obtain exactly the ground-state properties of the sine-Gordon model with a finite density of topological solitons. Using a theory of 1D quantum fluids, the correlation function exponents and low-energy excitation spectrum are obtained. Expansions in various limits are given, and various crossovers described.

Original languageEnglish (US)
Article number021
Pages (from-to)507-525
Number of pages19
JournalJournal of Physics A: General Physics
Volume15
Issue number2
DOIs
StatePublished - Dec 1 1982
Externally publishedYes

All Science Journal Classification (ASJC) codes

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

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