Perturbation Theory in Angular Quantization Approach and the Expectation Values of Exponential Fields in Sin-Gordon Model
High Energy Physics - Theory
2009-10-31 v2
Abstract
In angular quantization approach a perturbation theory for the Massive Thirring Model (MTM) is developed, which allows us to calculate Vacuum Expectation Values of exponential fields in sin-Gordon theory near the free fermion point in first order of MTM coupling constant . The Hankel-transforms play an important role when carrying out this calculations. The expression we have found coincides with that of the direct expansion over of the exact formula conjectured by S.Lukyanov and A.Zamolodchikov.
Cite
@article{arxiv.hep-th/9904194,
title = {Perturbation Theory in Angular Quantization Approach and the Expectation Values of Exponential Fields in Sin-Gordon Model},
author = {R. H. Poghossian},
journal= {arXiv preprint arXiv:hep-th/9904194},
year = {2009}
}
Comments
21 pages, no figures, LaTeX file