Speaker
David Langlois
(APC/Université Paris Cité, CNRS)
Description
This talk will introduce scalar-tensor theories of gravity that contain a single scalar degree of freedom in addition to the usual tensor modes. These theories constitute the very broad family of Degenerate Higher-Order Scalar-Tensor (DHOST) theories, which include and extend Horndeski theories. Cosmological aspects of these theories will then be discussed. Finally, I will also present some results concerning black hole perturbations in the context of these models of modified gravity.
External references
- 24070041
- 62c53580-5460-4f9b-87ed-3adefb1f51cd
