Speaker
Tsutomu Kobayashi
(Rikkyo University)
Description
I describe how one can systematically construct covariant, ghost-free scalar-tensor theories whose Lagrangian includes up to third-order derivatives of the scalar field. The resultant theories extend the generalized disformal Horndeski and U-DHOST theories. I then discuss cosmological perturbations, emphasizing the role of new terms on EFT of Dark Energy.
Author
Tsutomu Kobayashi
(Rikkyo University)