Instability of non-supersymmetric smooth geometries

Details Instability of non-supersymmetric smooth geometries Instability of non-supersymmetric smooth geometries

2005-12-21

arxiv.org/abs/hep-th/0512277v2

Phys.Rev. D73 (2006) 064031

Physics

High Energy Physics

High Energy Physics - Theory

v2: typos corrected, reference added

Scientific paper

10.1103/PhysRevD.73.064031

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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