A Vertex Operator Approach for Form Factors of Belavin's (Z/nZ)-Symmetric Model and Its Application

Abstract

A vertex operator approach for form factors of Belavin's (Z/nZ)-symmetric model is constructed on the basis of bosonization of vertex operators in the A_{n−1}^{(1)} model and vertex-face transformation. As simple application for n=2, we obtain expressions for 2m-point form factors related to the σ^z and σ^x operators in the eight-vertex model.

Keywords

• vertex operator approach
• form factors
• Belavin's (Z/nZ)-symmetric model
• integral formulae