Speaker
Description
In this talk I will introduce the formalism of Cauchy Slice Holography, which provides a holographic description of Wheeler-DeWitt states in the canonical formulation of quantum gravity in terms of partition functions of T^2-deformed CFTs. The field theory lives on a spatial slice of the bulk. I will then explore some of the consequences of such a description of quantum gravity for a closed Universe with a positive cosmological constant. It turns out that a general solution comes as a superposition of two field theory branches, which are CPT duals of each other. Unlike in AdS/CFT, both of them are important in this case. I will end by explaining how the choice of superposition of branches is related to the contour problem in quantum cosmology, referring to minisuperspace toy models for concreteness.
