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ISCOs in AdS/CFT

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arxiv 2009.04500 v2 pith:QZETBBTT submitted 2020-09-09 hep-th gr-qc

David Berenstein , Ziyi Li , Joan Simon This is my paper
classification hep-thgr-qc
keywords blackcircularorbitsangularbindingenergyholeiscos
verification ladder T0 review T1 audit T2 compute T3 formal
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We study stable circular orbits in spherically symmetric AdS black holes in various dimensions and their limiting innermost stable circular orbits (ISCOs). We provide analytic expressions for their size, angular velocity and angular momentum in a large black hole mass regime. The dual interpretation is in terms of meta-stable states not thermalising in typical thermal scales and whose existence is due to non-perturbative effects on the spatial curvature. Our calculations reproduce the binding energy known in the literature, but also include a binding energy in the radial fluctuations corresponding to near circular trajectories. We also describe how particles are placed on these orbits from integrated operators on the boundary: they tunnel inside in a way that can be computed from both complex geodesics in the black hole background and from the WKB approximation of the wave equation. We explain how these two computations are related.

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Cited by 4 Pith papers

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

  1. Criticality of ISCOs and AdS/CFT

    hep-th 2026-04 unverdicted novelty 6.0 of 10

    ISCOs mark coalescence points of center and saddle fixed points in black hole effective potentials, exhibiting van der Waals-like mean-field scaling, with corresponding negative and positive anomalous dimensions for c...

  2. Imprint of the black hole interior on thermal four-point correlators

    hep-th 2025-12 conditional novelty 6.0 of 10

    Analytically continuing and smearing thermal four-point correlators turns them into flat-space scattering amplitudes at a bulk point inside the black hole.

  3. ISCOs and the weak gravity conjecture bound in higher derivative theories of gravity

    hep-th 2024-04 unverdicted novelty 6.0 of 10

    Derives WGC bound on probe charge-to-mass ratio from positivity of anomalous dimensions in dual CFT for charged particles in higher-derivative AdS black holes, with bound increasing with couplings and ISCOs existing u...

  4. Spacetime from Operator Algebras

    hep-th 2026-06 unverdicted novelty 5.0 of 10

    Reconstructs spacetime metric, curvature, and Einstein equations from matter field operator algebras in the G to 0 limit without using Bekenstein-Hawking area law, then models finite-N discrete spectra via random matr...

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