Static Patch Holography

Establish a holographic duality in de Sitter spacetime by proving that the semiclassical gravity description of the region inside a holographic screen S is fully captured by a quantum theory living on S.

Background

Motivated by the covariant entropy bound and thermodynamic properties of cosmological horizons, static patch holography posits that an observer’s causal patch is encoded on a screen located at or near the cosmological horizon. The conjecture aims to provide a concrete non-AdS holographic framework for cosmology.