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

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arxiv 1604.08212 v2 pith:XNTKHHTD submitted 2016-04-27 hep-th math-phmath.MPnlin.SI

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

classification hep-th math-phmath.MPnlin.SI
keywords lambdacurrentsdeformedintegrablemodelssigmadeformationresults
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We compute the 2- and 3-point functions of currents and primary fields of $\lambda$-deformed integrable $\sigma$-models characterized also by an integer $k$. Our results apply for any semisimple group $G$, for all values of the deformation parameter $\lambda$ and up to order $1/k$. We deduce the OPEs and equal-time commutators of all currents and primaries. We derive the currents' Poisson brackets which assume Rajeev's deformation of the canonical structure of the isotropic PCM, the underlying structure of the integrable $\lambda$-deformed $\sigma$-models. We also present analogous results in two limiting cases of special interest, namely for the non-Abelian T-dual of the PCM and for the pseudodual model.

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Cited by 2 Pith papers

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