Negative energy states in the Reissner-Nordstr\"om metric

TL;DR

This paper investigates negative energy trajectories in the Reissner-Nordström spacetime, revealing unique particle behaviors within the ergoregion that are significant for high-energy collision scenarios involving white holes.

Contribution

It demonstrates the existence and properties of negative energy electrogeodesics in Reissner-Nordström spacetime, highlighting their implications for black-white hole interactions.

Findings

Exactly one turning point exists inside the ergoregion for negative energy particles.

Such particles traverse an infinite chain of black-white hole regions or end in the singularity.

Results are relevant for high-energy collision scenarios involving white holes.

Abstract

We consider electrogeodesics on which the energy $E<0$ in the Reissner-Nordstr\"{o}m metric. It is shown that outside the horizon there is exactly one turning point inside the ergoregion for such particles. This entails that such a particle passes through an infinite chain of black-white hole regions or terminates in the singularity. These properties are relevant for two scenarios of high energy collisions in which the presence of white holes is essential.