Quantum entanglement produced in the formation of a black hole

Eduardo Martín-Martínez, Luis J. Garay, and Juan León
Phys. Rev. D 82, 064028 – Published 22 September 2010

Abstract

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.

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  • Received 16 July 2010

DOI:https://doi.org/10.1103/PhysRevD.82.064028

© 2010 The American Physical Society

Authors & Affiliations

Eduardo Martín-Martínez1, Luis J. Garay2,3, and Juan León1

  • 1Instituto de Física Fundamental, CSIC, Serrano 113-B, 28006 Madrid, Spain
  • 2Departamento de Física Teórica II, Universidad Complutense de Madrid, 28040 Madrid, Spain
  • 3Instituto de Estructura de la Materia, CSIC, Serrano 121, 28006 Madrid, Spain

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Issue

Vol. 82, Iss. 6 — 15 September 2010

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