Hawking radiation of charged particles as tunneling from Reissner-Nordstrom-de Sitter black holes with a global monopole

TL;DR

This paper investigates Hawking radiation as a tunneling process of charged particles from Reissner-Nordstrom-de Sitter black holes with a global monopole, revealing non-thermal spectra consistent with unitarity.

Contribution

It extends the tunneling method to charged particles in complex black hole spacetimes with monopoles, showing the spectrum's deviation from pure thermality.

Findings

Tunneling rate relates to change in Bekenstein-Hawking entropy.

Radiant spectrum is not purely thermal.

Results support unitarity in black hole radiation.

Abstract

Applying Parikh's semi-classical tunneling method, we consider Hawking radiation of the charged massive particles as a tunneling process from the Reissner-Nordstrom-de Sitter black hole with a global monopole. The result shows that the tunneling rate is related to the change of Bekenstein-Hawking entropy and the radiant spectrum is not a pure thermal one, but is consistent with an underlying unitary theory.