We use the exact scattering description of the scaling Ashkin-Teller model in two dimensions to compute the two-particle form factors of the relevant operators. These provide an approximation for the correlation functions whose accuracy is tested against exact sum rules.
Off-critical correlations in the Ashkin-Teller model / Delfino, Gesualdo. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 450:1-3(1999), pp. 196-201. [10.1016/S0370-2693(99)00123-9]
Off-critical correlations in the Ashkin-Teller model
Delfino, Gesualdo
1999-01-01
Abstract
We use the exact scattering description of the scaling Ashkin-Teller model in two dimensions to compute the two-particle form factors of the relevant operators. These provide an approximation for the correlation functions whose accuracy is tested against exact sum rules.File in questo prodotto:
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