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On the S-matrix of the Sub-leading Magnetic Deformation of the Tricritical Ising Model in Two Dimensions

F. Colomo·A. Koubek·G. Mussardo
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Abstract

We compute the $S$-matrix of the Tricritical Ising Model perturbed by the subleading magnetic operator using Smirnov's RSOS reduction of the Izergin-Korepin model. The massive model contains kink excitations which interpolate between two degenerate asymmetric vacua. As a consequence of the different structure of the two vacua, the crossing symmetry is implemented in a non-trivial way. We use finite-size techniques to compare our results with the numerical data obtained by the Truncated Conformal Space Approach and find good agreement.

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F. Colomo, A. Koubek, G. Mussardo. 1991-08-27. On the S-matrix of the Sub-leading Magnetic Deformation of the Tricritical Ising Model in Two Dimensions. https://doi.org/10.1142/s0217751x92002416

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