Mass scale in the sine–gordon model and its reductions

AB Zamolodchikov - International Journal of Modern Physics A, 1995 - World Scientific
Known Bethe ansatz results about the sine–Gordon factorized scattering are reinterpreted in
terms of perturbed conformal field theory. We obtain an exact relation between the ultraviolet …

The exact relations between the coupling constants and the masses of particles for the integrable perturbed conformal field theories

VA Fateev - Physics Letters B, 1994 - Elsevier
We give the exact relations between the coupling constants and the masses of particles for
the integrable perturbed coset models of Conformal Field Theory associated with simply …

Non-linear integral equation and finite volume spectrum of sine-Gordon theory

G Feverati, F Ravanini, G Takacs - Nuclear Physics B, 1999 - Elsevier
We examine the connection between the non-linear integral equation (NLIE) derived from
light-cone lattice and sine-Gordon quantum field theory, considered as a perturbed c= 1 …

Construction of Green's functions from an exact matrix

B Berg, M Karowski, P Weisz - Physical Review D, 1979 - APS
The bootstrap program for determining Green's functions from an exact S matrix is carried
out for the simplest soliton field theory of a scalar field with S-matrix operator S=(− 1) N (N …

Spectral flow between conformal field theories in 1+ 1 dimensions

TR Klassen, E Melzer - Nuclear Physics B, 1992 - Elsevier
Abstract Consider the φ 1, 3-perturbed minimal unitary conformal field theories M p (with
diagonal modular invariant partition function) of central charge cp= 1−(6 p (p+ 1)), p= 3, 4 …

Thermodynamic Bethe ansatz for RSOS scattering theories

AB Zamolodchikov - Nuclear Physics B, 1991 - Elsevier
Thermodynamic Bethe ansatz equations are suggested for RSOS scattering theories, which
describe the scattering of kinks in the field theories, corresponding to the perturbations of the …

Integrable field theory from conformal field theory

AB Zamolodchikov - Integrable Sys Quantum Field Theory, 1989 - Elsevier
Equations of motion for two-dimensional quantum field theory obtained as some relevant
perturbation around CFT are analyzed. It is shown that for particular degenerate fields taken …

Excited state Destri-De Vega equation for sine-Gordon and restricted sine-Gordon models

D Fioravanti, A Mariottini, E Quattrini, F Ravanini - Physics Letters B, 1997 - Elsevier
We derive a generalization of the Destri-De Vega equation governing the scaling functions
of some excited states in the sine-Gordon theory. In particular, configurations with an even …

The perturbated c< 1 conformal field theories as reductions of sine-Gordon model

FA Smirnov - International Journal of Modern Physics A, 1989 - World Scientific
THE PERTURBATED c < 1 CONFORMAL FIELD THEORIES AS REDUCTIONS OF SINE-GORDON
MODEL | International Journal of Modern Physics A World Scientific Search This Journal …

Purely elastic scattering theories and their ultraviolet limits

TR Klassen, E Melzer - Nuclear Physics B, 1990 - Elsevier
We use the thermodynamic Bethe ansatz to find the finite-size corrections to the ground-
state energy in an arbitrary (1+ 1)-dimensional purely elastic scattering theory. The leading …