From black strings to black holes

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Abstract
Using recently developed numerical methods, we examine neutral compactified non-uniform black strings which connect to the Gregory–Laflamme critical point. By studying the geometry of the horizon, we give evidence that this branch of solutions may connect to the black-hole solutions, as conjectured by Kol. We find the geometry of the topology changing solution is likely to be nakedly singular at the point where the horizon radius is zero. We show that these solutions can all be expressed in the coordinate system discussed by Harmark and Obers.

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