Short-distance expansions of correlation functions in the sine-Gordon theory
نویسندگان
چکیده
منابع مشابه
Short Distance Expansions of Correlation Functions in the Sine-Gordon Theory
We examine the two-point correlation functions of the fields exp(iαΦ) in the sine-Gordon theory at all values of the coupling constantˆβ. Using conformal perturbation theory, we write down explicit integral expressions for every order of the short distance expansion. Using a novel technique analagous to dimensional regularisation, we evaluate these integrals for the first few orders finding exp...
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A number of two-dimensional(2D) critical phenomena can be described in terms of the 2D sine-Gordon model. With the bosonization, several 1D quantum systems are also transformed to the same model. However, the transition of the 2D sine-Gordon model, Berezinskii-KosterlitzThouless(BKT) transition, is essentially different from the second-order transition. The divergence of the correlation length ...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1996
ISSN: 0550-3213
DOI: 10.1016/0550-3213(96)00279-9