lambda-Deformations of left-right asymmetric CFTs

作者：Georgiou George; Sfetsos Konstantinos; Siampos Konstantinos^*

来源：Nuclear Physics B, 2017, 914: 623-641.

DOI：10.1016/j.nuclphysb.2016.11.022

We compute the all-loop anomalous dimensions of current and primary field operators in deformed current algebra theories based on a general semi-simple group, but with different (large) levels for the left and right sectors. These theories, unlike their equal level counterparts, possess a new non-trivial fixed point in the IR. By computing the exact in lambda two- and three-point functions for these operators we deduce their OPEs and their equal-time commutators. Using these we argue on the nature of the CFT at the IR fixed point. The associated to the currents Poisson brackets are a two-parameter deformation of the canonical structure of the isotropic PCM.

• 出版日期2017-1