Kalb-Ramond backgrounds in $alpha’$-complete cosmology. (arXiv:2104.15131v1 [hep-th])
<a href="http://arxiv.org/find/hep-th/1/au:+Bernardo_H/0/1/0/all/0/1">Heliudson Bernardo</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Chouha_P/0/1/0/all/0/1">Paul R. Chouha</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Franzmann_G/0/1/0/all/0/1">Guilherme Franzmann</a>
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.
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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