Energy extraction from Reissner–Nordström black holes with spinning particles

Abstract

The collisional Penrose process is a mechanism for extracting energy from black holes. Particle collisions occurring near the horizons of rapidly spinning black holes has been shown to potentially result in arbitrarily high center-of-mass energies. In this paper, we are mainly interested with two questions: (1) can we observe the same phenomena for static, spherically symmetric, charged black holes? and (2) what happens to the system if we consider spinning particles? We have shown that the addition of spin to the participating particles introduced a turning point near the black hole horizon which was otherwise not present for non-spinning particles. With the presence of this turning point, near horizon collisions are now more probable compared to the nonspinning particle case, and thus similar high center of mass energies can also be achieved.