Black holes as Andreev reflecting mirrors

TL;DR

This paper presents a quantum microscopic model describing Hawking radiation as Andreev reflections, offering a unitary resolution to the black hole information paradox by modeling black holes as quantum mirrors that preserve information.

Contribution

It introduces a detailed microscopic quantum framework for black holes as Andreev reflecting mirrors, expanding previous models and addressing shortcomings of the black hole final state proposal.

Findings

Black holes modeled as Andreev mirrors preserve quantum information.

Hawking radiation described as Andreev reflections, ensuring unitarity.

Generalization to Einstein-Rosen bridges suggests information loss mechanisms.

Abstract

We propose a microscopic quantum description for Hawking radiation as Andreev reflections, which resolves the quantum information paradox at black hole event horizons. The detailed microscopic analysis presented here reveals how a black hole, treated as an Andreev reflecting mirror, provides a manifestly unitary description of an evaporating black hole, expanding our previous analysis presented in [PRD 96, 124011 (2017), PRD 98, 124043 (2018)]; In our analogy, a black hole resolves the information paradox by accepting particles -- pairing them with the infalling Hawking quanta into a Bardeen-Cooper-Schrieffer (BCS) like quantum ground state -- while Andreev reflecting the quantum information as encoded in outgoing Hawking radiation. The present approach goes beyond the black hole final state proposal by Horowitz and Maldacena [JHEP 02, 008 (2004)], by providing necessary microscopic details which allows us to circumvent important shortcomings of the black hole final state proposal. We also generalize the present Hamiltonian description to make an analogy to the apparent loss of quantum information possible in an Einstein-Rosen bridge, via crossed Andreev reflections.