All-loop correlators of integrable λ-deformed σ-models

We compute the 2- and 3-point functions of currents and primary fields of λ-deformed integrable σ-models characterized also by an integer k. Our results apply for any semisimple group G, for all values of the deformation parameter λ and up to order 1/k. We deduce the OPEs and equal-time commutators...

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Bibliographic Details
Main Authors: George Georgiou, Konstantinos Sfetsos, Konstantinos Siampos
Format: Article
Language:English
Published: Elsevier 2016-08-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321316301298