Jul 15 – 19, 2024
Perimeter Institute for Theoretical Physics
America/Toronto timezone
Reminder: Monday and Tuesday's sessions take place at Federation Hall (University of Waterloo), with the remainder of the week at Perimeter Institute.

Beyond Horndeski theories

Jul 17, 2024, 9:45 AM
45m
PI/1-100 - Theatre (Perimeter Institute for Theoretical Physics)

PI/1-100 - Theatre

Perimeter Institute for Theoretical Physics

190

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.

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External references