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Elsevier, Nuclear Physics B, 3(499), p. 673-689, 1997

DOI: 10.1016/s0550-3213(97)00356-8

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Solitonic Integrable Perturbations of Parafermionic Theories

Journal article published in 1997 by Carlos R. Fernandez-Pousa ORCID, Manuel V. Gallas, Timothy J. Hollowood, J. Luis Miramontes
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The quantum integrability of a class of massive perturbations of the parafermionic conformal field theories associated to compact Lie groups is established by showing that they have quantum conserved densities of scale dimension 2 and 3. These theories are integrable for any value of a continuous vector coupling constant, and they generalize the perturbation of the minimal parafermionic models by their first thermal operator. The classical equations-of-motion of these perturbed theories are the non-abelian affine Toda equations which admit (charged) soliton solutions whose semi-classical quantization is expected to permit the identification of the exact S-matrix of the theory. ; Comment: 18 pages, plain TeX, no figures