Pith. sign in

REVIEW 5 cited by

A third law of black hole mechanics for supersymmetric black holes and a quasi-local mass-charge inequality

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2410.11956 v2 pith:CUWMWQTF submitted 2024-10-15 gr-qc hep-th

classification gr-qchep-th
keywords blackholeinequalitymass-chargeprovedcannotcollapsecross-section
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

It has recently been proved that a third law of black hole mechanics does not hold for Einstein-Maxwell theory coupled to a massless charged scalar field: there exist solutions that describe gravitational collapse to form an exactly extremal Reissner-Nordstr\"om black hole in finite time. In this paper it is proved that such solutions do not exist in theories with matter fields satisfying a local mass-charge inequality. In such a theory, if a 2-surface has the same metric, extrinsic curvature, and Maxwell field as a cross-section of an extremal Reissner-Nordstr\"om horizon then this surface cannot have a compact interior and so cannot be a horizon cross-section of a black hole formed in gravitational collapse. This result is proved using spinorial techniques, which are also used to prove a mass-charge inequality for a modified version of the Dougan-Mason quasi-local mass.

Discussion (0). Sign in to comment.

Forward citations

Cited by 5 Pith papers

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

  1. Violation of the third law of black hole mechanics in vacuum gravity

    gr-qc 2026-01 conditional novelty 7.0 of 10

    Numerical gluing constructions show finite-time formation of an extremal Myers-Perry black hole in five-dimensional vacuum gravity, from Schwarzschild or from no black hole.

  2. Information-Theoretic Black Hole Entropy I: Beyond the Area Law

    hep-th 2026-08 conditional novelty 6.0 of 10

    Black hole entropy is proposed to equal the Kullback-Leibler divergence between a mass-biased N-bit ensemble and the uniform ensemble, with the area law as the leading 1/N term.

  3. Formation of extremal Reissner-Nordstr\"om black holes: insights from numerics

    gr-qc 2025-12 conditional novelty 6.0 of 10

    For several scalar-field profiles, extremal Reissner-Nordström black holes can be glued from collapse only above a profile-dependent threshold in eM, and only for scalar masses below about m/e≈0.28.

  4. On the third law of black hole mechanics for supersymmetric black holes

    gr-qc 2025-07 conditional novelty 6.0 of 10

    Supersymmetric black holes cannot form in finite time from matter obeying the local mass-charge inequality, and a non-extremal black hole cannot evolve into a supersymmetric one in finite time.

  5. Information--Theoretic Black Hole Entropy II: Infrared Gravity and Charged/Rotating Extensions

    hep-th 2026-08 conditional novelty 4.0 of 10

    A perturbative infrared deformation of general relativity, with coefficients fixed by matching, reproduces the proposed third-law-compatible black hole entropy, and the same formula extends to Kerr-Newman black holes ...

Pith tools