Black holes and particles with zero or negative energy

Abstract

We study properties of particles with zero or negative energy and a nonzero orbital angular momentum in the ergosphere of a rotating black hole. We show that the sign of the particle energy is uniquely determined by the angular velocity of its rotation in the ergosphere. We give a simple proof of the fact that extreme black holes cannot exist. We investigate the question of the possibility of an unlimited energy increase in the center-of-mass system of two colliding particles, one or both of which have negative or zero energy.

13 pages, 7 figures

References in corpus (3)

• Are black holes totally black?
• On the energy of particle collisions in the ergosphere of the rotating black holes
• High energy physics in the vicinity of rotating black holes

Cited by in corpus (7)

• Particle collisions in ergoregion of braneworld Kerr black hole
• Particle dynamics around a dyonic charged black hole
• Zero-momentum trajectories inside a black hole and high energy particle collisions
• Three-dimensional general relativistic Poynting-Robertson effect II: Radiation field from a rigidly rotating spherical source
• Exploring black holes as particle accelerators: hoop-radius, target particles and escaping conditions
• On phase transitions near black holes
• Near-Horizon Collisions around Near-Extremal Black Holes