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Extremal and Near-Extremal Black Holes and Near-$CFT_1$

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arxiv 1808.08239 v3 pith:IAVQJLDC submitted 2018-08-24 hep-th gr-qc

Upamanyu Moitra , Sandip P. Trivedi , V. Vishal This is my paper · ORCID
classification hep-thgr-qc
keywords blackenergiesholesarisesarisingbehaviourextremalfind
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abstract

We study the behaviour of extremal and near-extremal black holes at low energies and low temperatures and find that it can be understood from the near-horizon $AdS_2$ region. Our analysis includes charged matter and also goes beyond the $S$-wave approximation. We find that the leading behaviour at low energies arises from a mode linked to time reparametrisations and from phase modes arising from gauge fields. At somewhat higher energies, additional modes arising from higher partial waves can also be cumulatively significant. These results can be applied quite generally to cases where an $AdS_2 \times S^d$ near-horizon geometry arises, including black holes in asymptotically $AdS$ and flat space-times.

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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. Schwarzian quantum corrections to shear correlators of the near-extremal Reissner-Nordstr\"om-AdS black hole

    hep-th 2025-12 conditional novelty 7.0 of 10

    Schwarzian quantum fluctuations raise the shear viscosity of near-extremal Reissner-Nordström-AdS4 black holes above s/4π by a positive O(1/(CT)^2) correction and are argued to lift the classical T=0 gapless shear mode.

  2. The spectrum of near-BPS Kerr-Newman black holes and the ABJM mass gap

    hep-th 2024-12 conditional novelty 6.0 of 10

    Near-BPS AdS4 Kerr-Newman black holes are described by an SU(1,1|1) super-Schwarzian theory, yielding a predicted mass gap of order N^{-3/2} and a continuous spectrum above it in ABJM.

  3. The extremal Reissner-Nordstr\"om throat from non extremal near horizon expansions

    hep-th 2026-07 accept novelty 5.0 of 10

    String Carroll first-order data miss the RN AdS2×S2 throat; second-order (EF) or all-order radial (static) terms restore it under near-extremal scaling.

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