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arXiv · 2107.04796

$O(25,25)$ symmetry of bosonic string theory at order $\alpha'^2$

Mohammad R. Garousi
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Abstract

It has been recently observed that the imposition of the $O(1,1)$ symmetry on the circle reduction of the classical effective action of string theory, can fix the effective action of the bosonic string theory at order $\alpha'^2$, up to an overall factor. In this paper, we use the cosmological reduction on the action and show that, up to one-dimensional field redefinitions and total derivative terms, it can be written in the $O(25,25)$-invariant form proposed by Hohm and Zwiebach.

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Mohammad R. Garousi. 2021-07-10. $O(25,25)$ symmetry of bosonic string theory at order $\alpha'^2$. https://doi.org/10.1140/epjc%2Fs10052-021-09518-6

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