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gr-qc2008★ 4 cited
On Universality of Ergoregion Mergers
Henriette Elvang, Pau Figueras, Gary T. Horowitz +2
We study mergers of ergoregions in -dimensional vacuum gravity. At the merger point, where the ergosurfaces bounding each ergoregion just touch, solutions exhibit universal be…
gr-qc2005★ 12 cited
Causally pathological spacetimes are physically relevant
Veronika E. Hubeny, Mukund Rangamani, Simon F. Ross
We argue that in the context of string theory, the usual restriction to globally hyperbolic spacetimes should be considerably relaxed. We exhibit an example of a spacetime which on…