(Non)perturbative gravity, nonlocality, and nice slices

Abstract

Perturbative dynamics of gravity is investigated for high energy scattering and in black hole backgrounds. In the latter case, a straightforward perturbative analysis fails, in a close parallel to the failure of the former when the impact parameter reaches the Schwarzschild radius. This suggests a flaw in a semiclassical description of physics on spatial slices that intersect both outgoing Hawking radiation and matter that has carried information into a black hole; such slices are instrumental in a general argument for black hole information loss. This indicates a possible role for the proposal that nonperturbative gravitational physics is intrinsically nonlocal.

21 pages, harvmac. v2: minor wording changes and added references

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• The gravitational S-matrix
• Conservative solutions to the black hole information problem
• Nonviolent nonlocality
• Gravitational effects in ultrahigh-energy string scattering
• Emergent Models for Gravity: an Overview of Microscopic Models
• A global picture of quantum de Sitter space
• High energy scattering in gravity and supergravity
• High-energy gravitational scattering and black hole resonances
• Nonlocality vs. complementarity: a conservative approach to the information problem
• Quantum gravitational collapse: non-singularity and non-locality
• Quantization in black hole backgrounds
• Non-local (but also non-singular) physics at the last stages of gravitational collapse
• Quantitative approaches to information recovery from black holes
• Quantum-first gravity
• Effective field theory models for nonviolent information transfer from black holes
• High-energy black hole production
• Is string theory a theory of quantum gravity?
• Universal quantum mechanics
• Relational observables in 2d quantum gravity
• Quantum Hotspots: Mean Fields, Open EFTs, Nonlocality and Decoherence Near Black Holes
• Qubit Transport Model for Unitary Black Hole Evaporation without Firewalls
• Black holes, information, and locality
• The Good, the Bad, and the Ugly of Gravity and Information
• Space-like Singularities and Thermalization
• Linking the trans-Planckian and the information loss problems in black hole physics
• TCC bounds on the static patch of de Sitter space
• Beyond the Planck scale
• Holography versus Correspondence principle: eternal Schwarzschild-anti-de Sitter geometry
• Influence Through Mixing: Hotspots as Benchmarks for Basic Black-Hole Behaviour
• Schwarzschild black hole states and entropies on a nice slice