Revised Upper Limit to Energy Extraction from a Kerr Black Hole
Revised Upper Limit to Energy Extraction from a Kerr Black Hole
We present a new upper limit on the energy that may be extracted from a Kerr black hole by means of particle collisions in the ergosphere (i.e., the "collisional Penrose process"). Earlier work on this subject has focused largely on particles with critical values of angular momentum falling into an …