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A Two-loop Test of Buscher's T-duality I

Zalan Horvath·Robert L. Karp·Laszlo Palla
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Abstract

We study the two loop quantum equivalence of sigma models related by Buscher's T-duality transformation. The computation of the two loop perturbative free energy density is performed in the case of a certain deformation of the SU(2) principal sigma model, and its T-dual, using dimensional regularization and the geometric sigma model perturbation theory. We obtain agreement between the free energy density expressions of the two models.

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Zalan Horvath, Robert L. Karp, Laszlo Palla. 2000-04-12. A Two-loop Test of Buscher's T-duality I. https://doi.org/10.1103/physrevd.62.045005

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