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Renormalization of Lorentz non-invariant actions and manifest T-duality

Sfetsos, K, Siampos, K and Thompson, DC (2009) Renormalization of Lorentz non-invariant actions and manifest T-duality Nucl.Phys.B, 827. pp. 545-564.

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We study general two-dimensional sigma-models which do not possess manifest Lorentz invariance. We show how demanding that Lorentz invariance is recovered as an emergent on-shell symmetry constrains these sigma-models. The resulting actions have an underlying group-theoretic structure and resemble Poisson-Lie T-duality invariant actions. We consider the one-loop renormalization of these models and show that the quantum Lorentz anomaly is absent. We calculate the running of the couplings in general and show, with certain non-trivial examples, that this agrees with that of the T-dual models obtained classically from the duality invariant action. Hence, in these cases solving constraints before and after quantization are commuting operations.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Siampos, K
Thompson, DC
Date : 7 October 2009
DOI : 10.1016/j.nuclphysb.2009.11.001
Uncontrolled Keywords : hep-th, hep-th
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:26
Last Modified : 24 Jan 2020 22:14

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