http://arxiv.org/abs/2104.15131
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.
H. Bernardo, P. Chouha and G. Franzmann
Mon, 3 May 21
17/45
Comments: 25 pages
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