Speaker
Gabriele Dian
(DESY Hamburg)
Description
We study correlators of a class of scalar toy models in cosmological background. These can be computed from the so-called wavefunction of the universe which in turn is given by the canonical form of the cosmological polytope. We find that a simple geometrical operation on the cosmological polytope gives a geometry whose canonical form gives the correlator. We initiate the study of its boundary structure and triangulations identifying new set of soft limits and positivity bounds.
Primary author
Gabriele Dian
(DESY Hamburg)
