Remarks on remnants by fermions' tunnelling from black strings

TL;DR

This paper studies how quantum gravity effects influence fermion tunnelling from black strings, revealing that these effects slow temperature increase and suggest the formation of black hole remnants.

Contribution

It introduces quantum gravity corrections to fermion tunnelling from black strings, showing effects on Hawking temperature and the potential for remnants.

Findings

Quantum gravity corrections slow Hawking temperature increase.

Remnants are likely left after black string evaporation.

Hawking temperature depends on fermion quantum numbers.

Abstract

Hawking's calculation is unable to predict the final stage of the black hole evaporation. When effects of quantum gravity are taken into account, there is a minimal observable length. In this paper, we investigate fermions' tunnelling from the charged and rotating black strings. With the influence of the generalized uncertainty principle, the Hawking temperatures are not only determined by the rings, but also affected by the quantum numbers of the emitted fermions. Quantum gravity corrections slow down the increases of the temperatures, which naturally leads to remnants left in the evaporation.