Solitonic integrable perturbations of parafermionic theories

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• 作者：Ferná ; ndez-Pousa ; Carlos R. ; Gallas ; Manuel V. ; Hollowood ; Timothy J. ; Miramontes ; J. Luis
• 关键词：11.10.Lm ; 11.10.Kk ; 11.25.Hf ; 03.70.+k ; Completely integrable systems ; Non-abelian affine Toda theory ; Solitons ; Perturbed conformal theory ; Parafermions ; Quantum theory
• 刊名：Nuclear Physics B
• 出版年：1997
• 出版时间：August 25, 1997
• 年：1997
• 卷：499
• 期：3
• 页码：673-689
• 全文大小：801 K

文摘

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.