Dark-sector modifications to Kerr and Reissner-Nordstrom black hole evaporation

TL;DR

This paper analyzes how dark-sector modifications, including extra particle species and quantum effects, influence the evaporation dynamics of various black hole types, revealing potential changes in their evolution and charge behavior.

Contribution

It provides a comprehensive comparison of black hole evaporation considering dark-sector effects, highlighting new scenarios where black hole charge may increase during evaporation.

Findings

Additional particle species can alter evaporation hierarchy.

Dark-sector effects may cause black hole charge to increase.

Super-radiance and Schwinger pair production impact evaporation dynamics.

Abstract

We present a comprehensive comparative analysis of the evaporation dynamics of Schwarzschild, Kerr, and Reissner- Nordstrom black holes, focusing on the evolution of their mass, charge, and angular momentum, using detailed calculations of the corresponding Page factors. We investigate the evolution of black holes during the evaporation process, emphasizing how these quantities evolve relative to one another. Our study incorporates the effects of greybody factors, near-extremal conditions, and the introduction of additional particle species beyond the Standard Model. We demonstrate that the addition of particle degrees of freedom may significantly alter the evaporation hierarchy, potentially leading to scenarios in which the effective black hole charge increases during evaporation. Additionally, we examine the impact of Schwinger pair production and of super-radiance on charged, spinning black hole evaporation. These findings offer new insights into the complex interplay between different black hole parameters during evaporation and highlight the importance of considering additional particle species in the process.