Perturbation theory in radial quantization approach and the expectation values of exponential fields in sine-Gordon model

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dc.creatorMkhitaryan, V. V.
dc.creatorPoghossian, R. H.
dc.creatorSedrakyan, T. A.
dc.date1999-10-18
dc.date.accessioned2026-07-07T10:54:09Z
dc.date.available2026-07-07T10:54:09Z
dc.descriptionA perturbation theory for Massive Thirring Model (MTM) in radial quantization approach is developed. Investigation of the twisted sector in this theory allows us to calculate the vacuum expectation values of exponential fields $ exp iaphi (0) $ of the sine-Gordon theory in first order over Massive Thirring Models coupling constant. It appears that the apparent difficulty in radial quantization of massive theories, namely the explicite ''time'' dependence of the Hamiltonian, may be successfully overcome. The result we have obtained agrees with the exact formula conjectured by Lukyanov and Zamolodchikov and coincides with the analogous calculations recently carried out in dual angular quantization approach by one of the authors.
dc.description16 pages, no figures, LaTex
dc.identifierhttps://arxiv.org/abs/hep-th/9910128
dc.identifierhttp://arxiv.org/abs/hep-th/9910128
dc.identifierJ.Phys.A33:3335-3346,2000
dc.identifierdoi:10.1088/0305-4470/33/16/320
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/185714
dc.subjectHigh Energy Physics - Theory
dc.subjectStrongly Correlated Electrons
dc.titlePerturbation theory in radial quantization approach and the expectation values of exponential fields in sine-Gordon model
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