Firewall or smooth horizon?
arXiv:1208.6480
Abstract
Recently, Almheiri, Marolf, Polchinski, and Sully found that for a sufficiently old black hole (BH), the set of assumptions known as the \emph{complementarity postulates} appears to be inconsistent with the assumption of local regularity at the horizon. They concluded that the horizon of an old BH is likely to be the locus of local irregularity, a "firewall". Here I point out that if one adopts a different assumption, namely that semiclassical physics holds throughout its anticipated domain of validity, then no inconsistency seems to arise, and the horizon retains its regularity. In this alternative view-point, the vast portion of the original BH information remains trapped inside the BH throughout the semiclassical domain of evaporation, and possibly leaks out later on. This appears to be an inevitable outcome of semiclassical gravity.
A slightly different version (with small modifications, mostly semantic, and some updated references) was published in Gen. Relativ. Gravit
References in corpus (8)
- Black holes as mirrors: quantum information in random subsystems
- Complementarity Is Not Enough
- Conformal Thin-Sandwich Solver for Generic Initial Data
- Singularities, Firewalls, and Complementarity
- Is Alice burning or fuzzing?
- Holographic Space-Time Does Not Predict Firewalls
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Cited by in corpus (11)
- Time Dependence of Hawking Radiation Entropy
- State-Dependent Bulk-Boundary Maps and Black Hole Complementarity
- Complementarity Is Not Enough
- Is the firewall consistent?: Gedanken experiments on black hole complementarity and firewall proposal
- Black hole complementarity and firewall in two dimensions
- Comment on the black hole firewall
- Holographic Space-time and Black Holes: Mirages As Alternate Reality
- Smooth Causal Patches for AdS Black Holes
- Remarks on Black Hole Evolution a la Firewalls and Fuzzballs
- Still No Rindler Firewalls
- Note on Localized Objects as Constrained States of Holographic Variables