Topic of Research Seminar: Black Holes and Particles with Zero or Negative Energy
Abstract: We study properties of particles with zero or negative energy and a non-zero 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.
Subject Field of Topic: General Relativity
Name of Speaker: Ms. Ayesha Zakria
Professorial Rank of Speaker: PhD Scholar (Mathematics Dpt.)
University Email of Speaker: email@example.com
Affiliation of Speaker: NUST School of Natural Sciences (NUST-SNS)
Date and Venue: October 12, 2022 at 1530 hrs, SNS Old building CR # 303, NUST Islamabad Campus