Black Hole Information in a Detector (Atom) - Field Analog

TL;DR

This paper investigates how information flows between an accelerated detector and a quantum field, using an analog model of a black hole, revealing that information is transferred to the field rather than lost, with implications for black hole information paradox.

Contribution

It provides exact solutions to a model simulating black hole information dynamics, offering new insights into entanglement and information transfer in non-Markovian regimes.

Findings

Black hole analog system remains unitarily evolving.

Information is transferred to the quantum field, not lost.

Highly entangled states form between the remnant and the field.

Abstract

This is a synopsis of our recent work on quantum entanglement, recoherence and information flow between an uniformly accelerated detector and a massless quantum scalar field. The availability of exact solutions to this model enables us to explore the black hole information issue with some quantifiable results and new insights. To the extent this model can be used as an analog to the system of a black hole interacting with a quantum field, our result seems to suggest in the prevalent non-Markovian regime, assuming unitarity for the combined system, that black hole information is not lost but transferred to the quantum field degrees of freedom. This combined system will evolve into a highly entangled state between a remnant of large area (in Bekenstein's black hole atom analog) without any information of its initial state, while the quantum field is imbued with complex information content not-so-easily retrievable by a local observer.