Algebraic approach to form factors in the complex sinh-Gordon theory

Abstract

We study form factors of the quantum complex sinh-Gordon theory in the algebraic approach. In the case of exponential fields the form factors can be obtained from the known form factors of the $Z_N$-symmetric Ising model. The algebraic construction also provides an Ansatz for form factors of descendant operators. We obtain generating functions of such form factors and establish their main properties: the cluster factorization and reflection equations.

arXiv comment10 pages; v2: a reference added; presentation improved; v3: an annoying misprint in the inline formula before (2.16) corrected

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Cited by in corpus (1)

• The complex sinh-Gordon model: form factors of descendant operators and current-current perturbations