RT Journal Article T1 Quantum entanglement produced in the formation of a black hole A1 Martin Martinez, Eduardo A1 Garay Elizondo, Luis Javier A1 León, Juan AB A field in the vacuum state, which is in principle separable, can evolve to an entangled state in a dynamical gravitational collapse. We will study, quantify, and discuss the origin of this entanglement, showing that it could even reach the maximal entanglement limit for low frequencies or very small black holes, with consequences in micro-black hole formation and the final stages of evaporating black holes. This entanglement provides quantum information resources between the modes in the asymptotic future (thermal Hawking radiation) and those which fall to the event horizon. We will also show that fermions are more sensitive than bosons to this quantum entanglement generation. This fact could be helpful in finding experimental evidence of the genuine quantum Hawking effect in analog models. PB Amer Physical Soc SN 1550-7998 YR 2010 FD 2010-09-22 LK https://hdl.handle.net/20.500.14352/44525 UL https://hdl.handle.net/20.500.14352/44525 LA eng NO © 2010 The American Physical Society.The authors want to thank Carlos Barceló for useful discussions. This work was supported by the Spanish MICINN Projects FIS2008-05705/FIS, FIS2008-06078- C03-03, the CAM research consortium QUITEMAD S2009/ESP-1594, and the Consolider-Ingenio 2010 Program CPAN (CSD2007-00042). E. M-M. was partially supported by a CSIC JAE-PREDOC2007 grant. NO Comunidad de Madrid NO Spanish MICINN NO CPAN NO CSIC through the JAE predoc program DS Docta Complutense RD 9 abr 2025