Classifying scalar-tensor theories - Application to cosmology
Karim Noui
LMPT, Tour, and APC, Paris
Tue, Apr. 10th 2018, 16:00-17:00
Salle Claude Itzykson, Bât. 774, Orme des Merisiers

There have been numerous attempts to modify general relativity, with either the motivation to account for dark energy or to model quantum gravity effects. Scalar-tensor theories have often played a prominent role in these attempts and recently special attention has been devoted to scalar-tensor theories whose Lagrangians contain second-order derivatives of a scalar field (like Horndeski theories, mimetic gravity and also Horava gravity in some sense...). In this seminar, I will present how one can classify Higher-Order Scalar-Tensor theories which propagate only one scalar degree of freedom in addition to the usual tensorial modes. I will also discuss applications in cosmology.

Contact : Filippo VERNIZZI


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