Information loss and entropy conservation in quantum corrected Hawking radiation

TL;DR

This paper investigates how quantum gravity corrections affect information conservation during black hole evaporation, showing that entropy is conserved and information can escape via Hawking radiation, supporting unitarity.

Contribution

It introduces Planck-scale quantum gravity effects into the analysis of Hawking radiation and entropy conservation, extending previous models.

Findings

Entropy remains conserved with quantum gravity corrections.

Black hole remnants may exist due to quantum effects.

Information can leak out through radiation, maintaining unitarity.

Abstract

It was found in [Phys.Lett.B 675 (2009) 98] that information is conserved in the process of black hole evaporation, by using the tunneling formulism and considering the correlations between emitted particles. In this Letter, we shall include quantum gravity effects, by taking into account of the log-area correction to Bekenstein-Hawking entropy. The correlation between successively emitted particles is calculated, with Planck-scale corrections. By considering the black hole evaporation process, entropy conservation is checked, and the existence of black hole remnant is emphasized. We conclue in this case information can leak out through the radiation and black hole evaporation is still a unitary process.