A Model for Unitary Black Hole Evaporation

TL;DR

This paper presents a quantum computation model for black hole evaporation that preserves information unitarily, utilizing qubit interactions, gates, and projections to simulate the process without information loss.

Contribution

It introduces a novel quantum computational framework for modeling black hole evaporation that ensures unitarity and information retrieval through teleportation.

Findings

The model achieves unitary black hole evaporation with minimal operations.

Information is recovered via teleportation in the model.

The approach demonstrates a concrete realization of the final black hole state concept.

Abstract

We describe a model for unitary black hole evaporation with no information loss in terms of a quantum computation. We assume that there is a fine tuned interaction between the qubits of the black hole Bell states which is the inverse of premeasurement. Evaporation is unitary due to a projection on the black hole state at the end of each computation whereas information comes out of the black hole by teleportation. The model requires only four operations; the qubit interactions, the Hadamard and CNOT gates and the projection which is nonunitary. The model is a concrete quantum computation that realizes the final black hole state idea with some modifications.