Recovering information of tunneling spectrum from Weakly Isolated Horizon

TL;DR

This paper explores the tunneling spectrum of weakly isolated horizons, revealing correlations among Hawking radiations that encode information, and generalizes previous results to broader spacetimes without strict angular momentum constraints.

Contribution

It demonstrates that information can be recovered from Hawking radiation via correlations and relaxes previous assumptions on particle angular momenta in tunneling calculations.

Findings

Hawking radiations from WIH are correlated.

Information is carried through correlations in emissions.

Radiation process conserves entropy.

Abstract

In this paper we investigate the properties of tunneling spectrum from weakly isolated horizon(WIH). We find that there are correlations among Hawking radiations from weakly isolated horizon, the information can be carried out in terms of correlations between sequential emissions, and the radiation is an entropy conservation process. We generalize Refs.[11-13]' results to a more general spacetime. Through revisiting the calculation of tunneling spectrum of weakly isolated horizon, we find that Ref.[12]'s requirement that radiating particles have the same angular momenta of unit mass as that of black hole is not needed, and the energy and angular momenta of emitting particles are very arbitrary which should be restricted only by keeping the cosmic censorship of black hole.