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arXiv · 2104.15131

Kalb-Ramond backgrounds in $\alpha'$-complete cosmology

Heliudson Bernardo·Paul R. Chouha·Guilherme Franzmann
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Abstract

We study the matter-coupled equations of motion for cosmological NS massless fields including all $\alpha'$ corrections in an O$(d,d)$ duality invariant approach, with emphasis on the Kalb-Ramond two-form field $B_{(2)}$ and its source. Solutions for the vacuum and matter case are found and the corresponding Einstein frame cosmologies are discussed. We also show that the ansatz for $B_{(2)}$ required by the duality invariant framework implies that the two-form is non-isotropic.

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Heliudson Bernardo, Paul R. Chouha, Guilherme Franzmann. 2021-04-30. Kalb-Ramond backgrounds in $\alpha'$-complete cosmology. https://doi.org/10.1007/jhep09(2021)109

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