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Instability of non-supersymmetric smooth geometries

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arxiv hep-th/0512277 v2 pith:TAYAGNGC submitted 2005-12-21 hep-th

V. Cardoso , O. J. C. Dias , J. L. Hovdebo , R. C. Myers This is my paper · ORCID
classification hep-th
keywords instabilitysolutionscertainergoregiongeometriesnon-supersymmetricsmoothargue
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Recently certain non-supersymmetric solutions of type IIb supergravity were constructed [hep-th/0504181], which are everywhere smooth, have no horizons and are thought to describe certain non-BPS microstates of the D1-D5 system. We demonstrate that these solutions are all classically unstable. The instability is a generic feature of horizonless geometries with an ergoregion. We consider the endpoint of this instability and argue that the solutions decay to supersymmetric configurations. We also comment on the implications of the ergoregion instability for Mathur's `fuzzball' proposal.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 114 citations worldwide. Full citation record

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  2. Berry Picking: Random Wave Chaos Hierarchy for BPS Microstate Geometries

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    Wave chaos in BPS microstate geometries strengthens toward black-hole-like throats while geodesic chaos weakens, and weak-coupling CFT Renyi entropies do not share that bulk hierarchy.

  3. Cogito, ergo - strings: Supersymmetric ergoregions and their stringy excitations

    hep-th 2025-08 unverdicted novelty 6.0 of 10

    Supersymmetric ergoregions without horizons in NS5-F1-P bound states are shown to admit negative-energy BPS excitations, described via gauged WZW models and mapped holographically to the dual CFT.

  4. Superradiance -- the 2020 Edition

    gr-qc 2015-01 unverdicted novelty 4.0 of 10

    Black-hole superradiance extracts energy via the ergoregion and can trigger instabilities with applications to dark matter, beyond-Standard-Model physics, and laboratory analogs.

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