Observing quantum gravity in asymptotically AdS space

Abstract

A question is studied whether an observer can discover quantum gravity being in the semi-classical regime. It is shown that it is indeed possible to probe a certain quantum gravity effect by employing an appropriately designed detector. The effect is related to the possibility of having topologically inequivalent geometries at once in the path integral approach. A CFT state which is expected to describe the eternal AdS black hole in the large N limit is discussed. It is argued under certain assumptions that the black hole boundary should be merely a patch of the entire AdS boundary. This leads then to a conclusion that that CFT state is the ordinary CFT vacuum restricted to that patch. If existent, the bulk CFT operators can behave as the ordinary semi- classical quantum field theory in the large N limit in the weak sense.

typos fixed; to be published in Physical Review D

References in corpus (6)

• Holographic representation of local bulk operators
• Comments on the Necessity and Implications of State-Dependence in the Black Hole Interior
• Unruh-DeWitt detector response along static and circular geodesic trajectories for Schwarzschild-AdS black holes
• Finite N and the failure of bulk locality: Black holes in AdS/CFT
• Local thermal observables in spatially open FRW spaces
• Non-unitarity or hidden observables?

Cited by in corpus (4)

• Smooth Causal Patches for AdS Black Holes
• The equivalence principle and QFT: Can a particle detector tell if we live inside a hollow shell?
• Holography versus Correspondence principle: eternal Schwarzschild-anti-de Sitter geometry
• Boundary Effects on the Thermodynamics of Quantum Fields Near a Static Black Hole