Infinite Blueshift of Charged Null Particles

TL;DR

This paper shows that charged null particles can experience infinite blueshift in Kerr-Newman and Reissner-Nordstrom spacetimes, with potential implications for models involving charged neutrinos.

Contribution

It reveals the possibility of infinite blueshift of charged null particles outside horizons in charged black hole spacetimes, expanding understanding of particle behavior near such objects.

Findings

Charged null particles can be infinitely blueshifted outside the ergosphere and horizons.

Infinite blueshift surfaces can exist outside the ergosphere in Kerr-Newman spacetime.

Implications discussed for models with charged neutrinos.

Abstract

We demonstrate that charged null particles can be infinitely blue\-shifted in a Kerr-Newman spacetime. The surface of infinite blueshift can be outside of the ergosphere in a Kerr-Newman spacetime, and outside of the outer event horizon for a Reissner-Nordstrom spacetime. Implications for extensions of the standard model which incorporate charged neutrinos are discussed.