50 research outputs found
Towards causal patch physics in dS/CFT
This is a status report on a research program aimed at obtaining
quantum-gravitational physics inside a cosmological horizon through dS/CFT,
i.e. through a holographic description at past/future infinity of de Sitter
space. The program aims to bring together two main elements. The first is the
observation by Anninos, Hartman and Strominger that Vasiliev's higher-spin
gravity provides a working model for dS/CFT in 3+1 dimensions. The second is
the proposal by Parikh, Savonije and Verlinde that dS/CFT may prove more
tractable if one works in so-called "elliptic" de Sitter space - a
folded-in-half version of global de Sitter where antipodal points have been
identified. We review some relevant progress concerning quantum field theory on
elliptic de Sitter space, higher-spin gravity and its holographic duality with
a free vector model. We present our reasons for optimism that the approach
outlined here will lead to a full holographic description of quantum
(higher-spin) gravity in the causal patch of a de Sitter observer.Comment: 10 pages, 1 figure. Conference proceedings contribution for
ICGAC-13/IK-15 in Ewha Womans University in Seou