学術雑誌論文 Exact Mass-Coupling Relation for the Homogeneous Sine-Gordon Model

Bajnok, Zoltán  ,  Balog, János  ,  Ito, Katsushi  ,  Satoh, Yuji  ,  Tóth, Gábor Zsolt

116 ( 18 )  , p.181601 , 2016-05 , American Physical Society
ISSN:0031-9007
NII書誌ID(NCID):AA00773679
内容記述
We derive the exact mass-coupling relation of the simplest multiscale quantum integrable model, i.e., the homogeneous sine-Gordon model with two mass scales. The relation is obtained by comparing the perturbed conformal field theory description of the model valid at short distances to the large distance bootstrap description based on the model’s integrability. In particular, we find a differential equation for the relation by constructing conserved tensor currents, which satisfy a generalization of the Θ sum rule Ward identity. The mass-coupling relation is written in terms of hypergeometric functions.
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