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Non-Abelian coset string backgrounds from asymptotic and initial data

Petropoulos, PM and Sfetsos, K (2006) Non-Abelian coset string backgrounds from asymptotic and initial data JHEP, 0704.

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Abstract

We describe hierarchies of exact string backgrounds obtained as non-Abelian cosets of orthogonal groups and having a space--time realization in terms of gauged WZW models. For each member in these hierarchies, the target-space backgrounds are generated by the ``boundary'' backgrounds of the next member. We explicitly demonstrate that this property holds to all orders in $\alpha'$. It is a consequence of the existence of an integrable marginal operator build on, generically, non-Abelian parafermion bilinears. These are dressed with the dilaton supported by the extra radial dimension, whose asymptotic value defines the boundary. Depending on the hierarchy, this boundary can be time-like or space-like with, in the latter case, potential cosmological applications.

Item Type: Article
Authors :
NameEmailORCID
Petropoulos, PMUNSPECIFIEDUNSPECIFIED
Sfetsos, Kk.sfetsos@surrey.ac.ukUNSPECIFIED
Date : 4 October 2006
Identification Number : https://doi.org/10.1088/1126-6708/2007/04/033
Uncontrolled Keywords : hep-th, hep-th
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/835369

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