Black Hole Horizons from the Double Copy

Published 4 Jun 2023 in hep-th and gr-qc | (2306.02417v2)

Abstract: We describe a procedure for locating black hole horizons in Kerr-Schild spacetimes in the double copy paradigm. Using only single- and zeroth-copy data on flat spacetime, our procedure predicts the existence of trapped surfaces in the double-copy gravitational solution. We show explicitly how this procedure locates the horizon of the Schwarzschild black hole and the general Myers-Perry black hole.

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