Kenza Zeghari (Aix-Marseille Université)

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Kenza Zeghari (Aix-Marseille Université)

February 7, 2022
2:10 PM - 3:10 PM
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Rotating Cosmology

I will talk about homogeneous cosmologies coupled to a matter source that has the field theoretical description of a solid. Models of solid inflation are known for being less efficient in diluting away anisotropy than standard inflation. Our study finds another potential feature of solid inflation, namely a ``rotation” of the principal axes of the expansion.  Due to the anisotropic stress generated by the solid, such a rotation is not just a gauge artifact but becomes a real dynamical quantity.