Black Rings, Boosted Strings and Gregory-Laflamme

Details Black Rings, Boosted Strings and Gregory-Laflamme Black Rings, Boosted Strings and Gregory-Laflamme

2006-01-12

arxiv.org/abs/hep-th/0601079v1

Phys.Rev.D73:084013,2006

Physics

High Energy Physics

High Energy Physics - Theory

26 pages, 6 figures

Scientific paper

10.1103/PhysRevD.73.084013

We investigate the Gregory-Laflamme instability for black strings carrying KK-momentum along the internal direction. We demonstrate a simple kinematical relation between the thresholds of the classical instability for the boosted and static black strings. We also find that Sorkin's critical dimension depends on the internal velocity and in fact disappears for sufficiently large boosts. Our analysis implies the existence of an analogous instability for the five-dimensional black ring of Emparan and Reall. We also use our results for boosted black strings to construct a simple model of the black ring and argue that such rings exist in any number of space-time dimensions.

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