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Strings near black holes are Carrollian

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arxiv 2312.14240 v2 pith:KNBYVBBW submitted 2023-12-21 hep-th gr-qc

Arjun Bagchi , Aritra Banerjee , Jelle Hartong , Emil Have , Kedar S. Kolekar , Mangesh Mandlik This is my paper
classification hep-thgr-qc
keywords horizonnearstringstringsblackcarrollianlightspeedorder
verification ladder T0 review T1 audit T2 compute T3 formal
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We demonstrate that strings near the horizon of a Schwarzschild black hole, when viewed by a stationary observer at infinity, probe a string Carroll geometry, where the effective lightspeed is given by the distance from the horizon. We expand the Polyakov action in powers of this lightspeed to find a theory of Carrollian strings. We show that the string shrinks to a point to leading order near the horizon, which follows a null geodesic in a two-dimensional Rindler space. At the next-to-leading order the string oscillates in the embedding fields associated with the near-horizon two-sphere.

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Cited by 6 Pith papers

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

  1. Null-strings Gauged, Reloaded and Quantized, I: Canonical Quantization in the Light-Cone Gauge

    hep-th 2026-07 conditional novelty 7.0 of 10

    Light-cone Schrödinger quantization of null-strings with Carroll-Weyl symmetry yields D-3 physical modes, a discrete spectrum, and no critical dimension.

  2. Scaling Symmetry and Carrollian Gravity

    hep-th 2025-12 conditional novelty 7.0 of 10

    A single scaling-Carroll gauge-theory construction interpolates between dynamical Carroll gravity, Aristotelian gravity, and fracton gauge theories coupled to curved space.

  3. A unified expansion of Einstein's gravity

    hep-th 2026-07 conditional novelty 6.0 of 10

    A unified (s,n)-parametrized expansion of the Einstein-Hilbert action yields Galilean, Carroll, Lorentzian, and string Carroll gravity, and near-horizon black hole geometries satisfy the string Carroll equations.

  4. An Inconsistency in the Null Strings Literature: The Tale of an Overlooked Symmetry

    hep-th 2026-05 unverdicted novelty 6.0 of 10

    The paper claims a new local symmetry of null strings forces a third constraint, giving D−3 physical degrees of freedom.

  5. 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.

  6. Can Non-Relativistic Strings Propagate Without Geometric Baggage?

    hep-th 2025-06 reject novelty 4.0 of 10

    The paper claims that standard Newton-Cartan geometry is sufficient for classical non-relativistic string propagation, making the auxiliary gauge fields of gauging-the-algebra constructions dynamically redundant.

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