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High spin limits and non-abelian T-duality

Polychronakos, AP and Sfetsos, K (2010) High spin limits and non-abelian T-duality Nucl.Phys.B, 843. pp. 344-361.

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Abstract

The action of the non-abelian T-dual of the WZW model is related to an appropriate gauged WZW action via a limiting procedure. We extend this type of equivalence to general sigma-models with non-abelian isometries and their non-abelian T-duals, focusing on Principal Chiral models. We reinforce and refine this equivalence by arguing that the non-abelian T-duals are the effective backgrounds describing states of an appropriate parent theory corresponding to divergently large highest weight representations. The proof involves carrying out a subtle limiting procedure in the group representations and relating them to appropriate limits in the corresponding backgrounds. We illustrate the general method by providing several non-trivial examples.

Item Type: Article
Authors :
NameEmailORCID
Polychronakos, APUNSPECIFIEDUNSPECIFIED
Sfetsos, Kk.sfetsos@surrey.ac.ukUNSPECIFIED
Date : 23 August 2010
Identification Number : 10.1016/j.nuclphysb.2010.09.006
Uncontrolled Keywords : hep-th, hep-th, math-ph, math.MP
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:26
Last Modified : 17 May 2017 12:26
URI: http://epubs.surrey.ac.uk/id/eprint/835332

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