Tunneling into Microstate Geometries: Quantum Effects Stop Gravitational Collapse
arXiv:1512.05376 · doi:10.1007/JHEP07(2016)031
Abstract
Collapsing shells form horizons, and when the curvature is small classical general relativity is believed to describe this process arbitrarily well. On the other hand, quantum information theory based (fuzzball/firewall) arguments suggest the existence of some structure at the black hole horizon. This structure can only form if classical general relativity stops being the correct description of the collapsing shell before it reaches the horizon size. We present strong evidence that classical general relativity can indeed break down prematurely, by explicitly computing the quantum tunneling amplitude of a collapsing shell of branes into smooth horizonless microstate geometries. We show that the amplitude for tunneling into microstate geometries with a large number of topologically non-trivial cycles is parametrically larger than exp(-S), which indicates that the shell can tunnel into a horizonless configuration long before the horizon has any chance to form. We also use this technology to investigate the tunneling of M2 branes into LLM bubbling geometries.
26 pages + appendix
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- Tidal Stresses and Energy Gaps in Microstate Geometries
- A rough end for smooth microstate geometries
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- Delaying the Inevitable: Tidal Disruption in Microstate Geometries
- Loss of locality in gravitational correlators with a large number of insertions
- One-Loop Transition Amplitudes in the D1D5 CFT
- The Breakdown of String Perturbation Theory for Many External Particles
- Non-Abelian bubbles in microstate geometries
- Are quantum corrections on horizon scale physically motivated?
- Gravitational Waves, Holography, and Black Hole Microstates
- The nature of the gravitational vacuum
- What does the information paradox say about the universe?
- (Non-adiabatic) string creation on nice slices in Schwarzschild black holes
- Probing Black Hole Microstate Evolution with Networks and Random Walks
- UV Effects and Short-Lived Hawking Radiation: Alternative Resolution of Information Paradox