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.

Post-Newtonian limit of Lorentz-violating scalar-tensor theories

Jul 18, 2024, 9:00 AM
45m
PI/1-100 - Theatre (Perimeter Institute for Theoretical Physics)

PI/1-100 - Theatre

Perimeter Institute for Theoretical Physics

190

Speaker

Tsutomo Kobayashi (Rikkyo University)

Description

We study the weak-gravity regime of higher-order scalar-tensor theories that are degenerate in the unitary gauge. In a certain subset of theories analogous to Lorentz-violating scalar-tensor theories, we show that the Vainshtein mechanism due to nonlinear derivative interactions does not work. For this family of theories we determine all the PPN parameters in terms of the EFT of dark energy parameters and discuss the experimental bounds.

Presentation materials

There are no materials yet.

External references