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Decoupling the SU(N)2-homogeneous sine-Gordon model

Castro-Alvaredo, O. and Fring, A. (2001). Decoupling the SU(N)2-homogeneous sine-Gordon model. Physical Review D (PRD), 64(8), doi: 10.1103/PhysRevD.64.085007

Abstract

We provide a systematic construction for all n-particle form factors of the SU(N)2/U(1)N-1-homogeneous sine-Gordon model in terms of general determinant formulas for a large class of local operators. The ultraviolet limit is carried out and the corresponding Virasoro central charge, together with the conformal dimensions of various operators, are identified. The renormalization-group flow is studied and we find a precise rule, depending on the relative order of magnitude of the resonance parameters, according to which the theory decouples into new cosets along the flow.

Publication Type: Article
Additional Information: © 2001 The American Physical Society
Subjects: Q Science > QC Physics
Departments: School of Mathematics, Computer Science & Engineering > Mathematics
URI: http://openaccess.city.ac.uk/id/eprint/722
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