Fermionic model of unitary transport of qubits from a black hole

TL;DR

This paper introduces a fermionic toy model that explicitly demonstrates unitary information transfer from a black hole to radiation, combining Hawking pair creation and annihilation processes.

Contribution

It presents a novel fermionic model explicitly showing how information can be transferred unitarily from a black hole to emitted radiation.

Findings

Model is explicitly unitary

Combines Hawking pair creation and annihilation

Provides a new perspective on black hole information transfer

Abstract

Inspired by a recent model of Osuga and Page, we propose an explicitly unitary fermionic toy model for transferring information from a black hole to the outgoing radiation. The model treats the unitary evolution as a composition of the Hawking pair creation outside the black hole and of pair annihilation inside the black hole.