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Microscopic Entropy of AdS$_3$ Black Holes Revisited

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arxiv 2101.08497 v1 pith:NIR52UG5 submitted 2021-01-21 hep-th

Finn Larsen , Siyul Lee This is my paper
classification hep-th
keywords blackholesentropymicroscopicchargeconstrainthigherhole
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We revisit the microscopic description of AdS$_3$ black holes in light of recent progress on their higher dimensional analogues. The grand canonical partition function that follows from the AdS$_3$/CFT$_2$ correspondence describes BPS and nearBPS black hole thermodynamics. We formulate an entropy extremization principle that accounts for both the black hole entropy and a constraint on its charges, in close analogy with asymptotically AdS black holes in higher dimensions. We are led to interpret supersymmetric black holes as ensembles of BPS microstates satisfying a charge constraint that is not respected by individual states. This interpretation provides a microscopic understanding of the hitherto mysterious charge constraints satisfied by all BPS black holes in AdS. We also develop thermodynamics and a nAttractor mechanism of AdS$_3$ black holes in the nearBPS regime.

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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. Multicentered black hole saddles for supersymmetric indices

    hep-th 2025-07 conditional novelty 7.0 of 10

    Multi-center black hole saddles for the supersymmetric index exist at finite temperature, their on-shell action is the sum of extremal entropies, and the entire moduli space of saddles vanishes at walls of marginal stability.

  2. Index saddle for the D1-D5-P black string and its decoupling limit

    hep-th 2026-06 unverdicted novelty 6.0 of 10

    Constructs index saddle for D1-D5-P black string via BPS limit and uplift, with decoupling to BTZ x S^3 computing CFT index.

  3. Instability of Black Holes in AdS$_3 \times S^3$

    hep-th 2025-07 conditional novelty 6.0 of 10

    Near-extremal AdS3 x S3 black holes are thermodynamically and dynamically unstable, decaying to a central black hole plus chiral primaries or new macroscopic giant strings.

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