Ve. Korepin et Na. Slavnov, THE DETERMINANT REPRESENTATION FOR QUANTUM CORRELATION-FUNCTIONS OF THE SINH-GORDON MODEL, Journal of physics. A, mathematical and general (Print), 31(46), 1998, pp. 9283-9295
We consider the quantum sinh-Gordon model in this paper. Form factors
in this model were calculated by Mussardo and colleagues. We sum up al
l contributions of form factors and obtain a closed expression for a c
orrelation function. This expression is a determinant of an integral o
perator. Similar determinant representations have been proven to be us
eful not only in the theory of correlation functions, but also in matr
ix models.