Horizon Hair of Extremal Black Holes and Measurements at Null Infinity.
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DOI: 10.1103/physrevlett.121.131102
Abstract: It is shown that the conserved charges on the event horizon and the Cauchy horizon associated with scalar perturbations on extremal black holes are externally measurable from null infinity. This suggests that these charges have… read more here.
Keywords: horizon hair; extremal black; black holes; null infinity ... See more keywords