Stirring a black hole

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• J. Markeviciute
• Friday 24 February 2017, 13:00-14:00
• Pavilion B Potter Room (B1.19).

If you have a question about this talk, please contact Christopher Moore.

In this talk I will present novel solutions in global AdS4, which are constructed by turning on a dipolar differential rotation at the conformal boundary. We find two different geometries: a horizonless AdS soliton, and a rotating black hole with zero net angular momentum. The large black hole branch has an extended hourglass shape, and exists up to a maximum amplitude of the boundary profile. At this value, there is an ergoregion attached to the boundary, signalling superradiant instability. I will discuss the phase diagram and implications for weak cosmic censorship.

This talk is part of the DAMTP Friday GR Seminar series.

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