Speaker
Jan Pieter van der Schaar
(University of Amsterdam)
Description
I will discuss some progress in our understanding of the Euclidean action of de Sitter (charged) black hole spacetimes and their contributions in a Euclidean path integral approach, using a constrained instanton formalism. In a first attempt to start understanding non-perturbative corrections to de Sitter correlators, I will then describe how the the late-time behavior of de Sitter correlators in conjugate static patches, for large mass, can be understood in terms of a sum over complex geodesics using a heat-kernel approximation. I will end with some important open questions.
Author
Jan Pieter van der Schaar
(University of Amsterdam)
