Diagonal multisoliton matrix elements in finite volume

T. Pálmai, G. Takács

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We consider diagonal matrix elements of local operators between multisoliton states in finite volume in the sine-Gordon model and formulate a conjecture regarding their finite size dependence which is valid up to corrections exponential in the volume. This conjecture extends the results of Pozsgay and Takács which were only valid for diagonal scattering. In order to test the conjecture, we implement a numerical renormalization group improved truncated conformal space approach. The numerical comparisons confirm the conjecture, which is expected to be valid for general integrable field theories. The conjectured formula can be used to evaluate finite temperature one-point and two-point functions using recently developed methods.

Original languageEnglish
Article number045010
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume87
Issue number4
DOIs
Publication statusPublished - Feb 13 2013

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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