Expectation values of descendent fields in the sine-Gordon model
V. Fateev, D. Fradkin, S. Lukyanov, A. Zamolodchikov, Al. Zamolodchikov
Abstract
We obtain exactly the vacuum expectation values <(∂ϕ)2 (∂ϕ) eiαϕ> in the sine-Gordon model and <L-2 L-2 Φl,k> in Φ1,3 perturbed minimal CFT. We discuss applications of these results to short-distance expansions of two-point correlation functions.
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