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Strong cosmic censorship in the BTZ black hole

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arxiv 2002.02083 v2 pith:WSA5KGCN submitted 2020-02-06 hep-th gr-qc

Roberto Emparan , Marija Tomašević This is my paper · ORCID
classification hep-thgr-qc
keywords blackholecensorshipcosmichorizoninnerstrongbackreaction
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Recently it has been shown that quantum fields can be regular on the inner, Cauchy horizon of a rotating BTZ black hole, which appears to indicate a failure of strong cosmic censorship. We argue that, instead, what these results imply is that the inner horizon remains non-singular when leading-order backreaction of the quantum fields is computed, but, after next-order backreaction is accounted for, it will become singular. Then, strong cosmic censorship will be enforced in the BTZ black hole. We support our claims using a four-dimensional holographic dual of the system, which connects the instability of the inner horizon of the BTZ black hole to that of Kerr-type black holes.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. The Structure of Quantum Singularities on a Cauchy Horizon

    hep-th 2024-11 conditional novelty 7.0 of 10

    A QFT construction based on defect operators in the causal complement predicts a universal, index-dependent bound on robust Cauchy horizon singularities, explaining the observed mildness.

  2. Scalar perturbations and strong cosmic censorship in a regular ABGB-de Sitter black hole spacetime

    gr-qc 2026-07 conditional novelty 6.0 of 10

    In regular ABGB-de Sitter black holes, near-extremal scalar perturbations decay fast enough (β>1/2) to violate strong cosmic censorship, and adding scalar mass can push the regularity parameter past β=1.

  3. Cauchy-horizon flux coefficients in the reduced Polyakov model

    gr-qc 2025-11 reject novelty 4.0 of 10

    The abstract gives the inner-horizon flux coefficient F_-^∞ = t_v - Nκ_-^2/(48π) and its cancellation surface; the supplied full text instead claims a state-independent trace-anomaly enforcement of strong cosmic censo...

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