Do you have any recommendations in new papers today?

New submissions in gr-qc on Mon, 13 Sep 21

[2109.04477] Filip Hejda, José P. S. Lemos, Oleg B. Zaslavskii: Extraction of energy from an extremal rotating electrovacuum black hole: Particle collisions in the equatorial plane

[2109.04486] Aindriú Conroy, Peter Taylor: Response of an Unruh-DeWitt detector near an extremal black hole

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