Observing remnants by fermions' tunneling

TL;DR

This paper investigates how quantum gravity effects influence fermions' tunneling from black holes, leading to a slowdown in evaporation and the formation of remnants, with temperature variations depending on quantum numbers and black hole rotation.

Contribution

It introduces quantum gravity corrections to fermion tunneling in Reissner-Nordstrom and Kerr black holes, revealing residue masses and temperature dependencies.

Findings

Quantum gravity effects slow down black hole evaporation.

Black hole remnants are predicted due to temperature slowdown.

Temperature depends on quantum numbers and rotation angle.

Abstract

The standard Hawking formula predicts the complete evaporation of black holes. In this paper, we introduce effects of quantum gravity into fermions' tunneling from Reissner-Nordstrom and Kerr black holes. The quantum gravity effects slow down the increase of Hawking temperatures. This property naturally leads to a residue mass in black hole evaporation. The corrected temperatures are affected by the quantum numbers of emitted fermions. Meanwhile, the temperature of the Kerr black hole is a function of $\theta$ due to the rotation.