A unit of information in black hole evaporation

Black holes evolve by evaporation of their event horizon. While this process is believed to be unitary, there is no consensus on the recovery of information in black hole entropy. A missing link is a unit of information in black hole evaporation. Distinct from Hawking radiation, we identify evaporation in entangled pairs by P2 topology of the event horizon consistent with the Bekenstein- Hawking entropy in a uniformly spaced horizon area, where kB denotes the Boltzmann constant. It derives by continuation of P2 in Rindler spacetime prior to gravitational collapse, subject to a tight correlation of the fundamental frequency of Quasi-Normal-Mode (QNM) ringing in gravitational and electromagnetic radiation. Information extraction from entangled pairs by detecting one over the surface spanned by three faces of a large cube carries a unit of information of 2 log 3 upon including measurement of spin. Based on van Putten, 2024, CQG 06LT01 (2024CQGra..41fLT01V) and 2024, PoS 463, Corfu Summer Institute 2023 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2023) - Workshop on Tensions in Cosmology (https://pos.sissa.it/463/208).