Determinant representation for a quantum correlation function of the lattice sine - Gordon model
نویسندگان
چکیده
منابع مشابه
The determinant representation for quantum correlation functions of the sinh-Gordon model
We consider the quantum sinh-Gordon model in this paper. Form factors in this model were calculated in [1]–[3]. We sum up all contributions of form factors and obtain a closed expression for a correlation function. This expression is a determinant of an integral operator. Similar determinant representations were proven to be useful not only in the theory of correlation functions [4]–[12], but a...
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Kink Casimir energy in a lattice sine-Gordon model.
The Casimir energy of quantum fluctuations about the classical kink configuration is computed numerically in the weak coupling approximation for a recently proposed lattice sineGordon model. This energy depends periodically on the kink position and is found to be approximately sinusoidal. PACS classification numbers: 03.65.Sq, 11.10.Lm, 63.10.+a.
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and General
سال: 1997
ISSN: 0305-4470,1361-6447
DOI: 10.1088/0305-4470/30/1/016