Beta functions for the duality-invariant sigma model

DOI10.1007/JHEP10(2021)192zbMATH Open1476.83152arXiv2103.15931MaRDI QIDQ825808

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Publication date: 17 December 2021

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Abstract: The $O(d,d)$ invariant worldsheet theory for bosonic string theory with $d$ abelian isometries is employed to compute the beta functions and Weyl anomaly at one-loop. We show that vanishing of the Weyl anomaly coefficients implies the equations of motion of the Maharana-Schwarz action. We give a self-contained introduction into the required techniques, including beta functions, the Weyl anomaly for two-dimensional sigma models and the background field method. This sets the stage for a sequel to this paper on generalizations to higher loops and $alph{a}^{\prime }$ corrections.

Full work available at URL: https://arxiv.org/abs/2103.15931

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