Collisional Penrose Process in Rotating Wormhole Spacetime

TL;DR

This paper investigates the energy extraction via the collisional Penrose process in rotating wormhole spacetimes, demonstrating it can be more efficient than in Kerr black holes, especially at the wormhole's throat.

Contribution

It introduces the study of the collisional Penrose process specifically in Teo rotating wormholes, highlighting enhanced energy extraction efficiency.

Findings

Energy extraction efficiency is higher in Teo wormholes than in Kerr black holes.

Head-on collisions at the wormhole's throat facilitate significant energy gain.

The process can potentially be used for high-energy astrophysical phenomena.

Abstract

In a collisional Penrose process, two particles coming from the asymptotically flat region collide in the ergosphere of a compact object. The collision produces two new particles, one with positive energy and one with negative energy. When the particle with positive energy escapes to infinity, the process extracts energy from the compact object. In this paper, we study the collisional Penrose process in a rotating wormhole spacetime. We consider the simple case of a head-on collision at the throat of a Teo wormhole. We find that the process of energy extraction from a Teo wormhole can be substantially more efficient than the collisional Penrose process in the Kerr black hole spacetime.