Cosmic censorship, area theorem, and self-energy of particles

  title={Cosmic censorship, area theorem, and self-energy of particles},
  author={Shahar Hod},
  journal={Physical Review D},
  • S. Hod
  • Published 1 May 2002
  • Physics
  • Physical Review D
The (zeroth-order) energy of a particle in the background of a black hole is given by Carter's integrals. However, exact calculations of a particle's {\it self-energy} (first-order corrections) are still beyond our present reach in many situations. In this paper we use Hawking's area theorem in order to derive bounds on the self-energy of a particle in the vicinity of a black hole. Furthermore, we show that self-energy corrections {\it must} be taken into account in order to guarantee the… 
Self-force as a cosmic censor
We examine Hubeny’s scenario according to which a near-extremal Reissner-Nordstrom black hole can absorb a charged particle and be driven toward an over-extremal state in which the charge exceeds the
Weak cosmic censorship conjecture in Kerr black holes of modified gravity
By neglecting the effects of self-force and radiation, we investigate the possibility of destroying the Kerr-MOG black hole through the point particle absorption process. Using the instability of
Overcharging a multi-black-hole system and cosmic censorship
We study the generalization of the gadenken experiment of overcharging an extremal black hole proposed by Wald in the context of a multi black hole solution. In particular, we attempt to overcharge a
Dragging of inertial frames in the composed black-hole-particle system and the weak cosmic censorship conjecture
  • S. Hod
  • Physics
    The European Physical Journal C
  • 2020
We analyze a gedanken experiment in which a spinning particle that also possesses an extrinsic orbital angular momentum is captured by a spinning Kerr black hole. The gravitational spin-orbit
Destroying charged black holes in higher dimensions with test particles
A possible way to destroy the Tangherlini Reissner–Nordstrom black hole is discussed in the spirit of Wald’s gedanken experiment. By neglecting radiation and self force effects, the absorbing
Destroying a Near-Extremal Kerr-Newman-AdS Black Hole with Test Particles
If radiative and self-force effects are neglected, we find that feeding a test particle into a near-extremal Kerr-Newman-AdS black hole could lead to destroy their event horizon, giving rise to naked
Cosmic Censorship Conjecture violation: A semiclassical approach
The Cosmic Censorship Conjecture (CCC) states that every singularity (except the cosmological one) must appear "dressed" in the universe. This statement was introduced by Roger Penrose (Penrose,
No evidence for violation of the second law in extended black hole thermodynamics
Recently a number of papers have claimed that the horizon area - and thus the entropy - of near extremal black holes in anti-de Sitter spacetimes can be reduced by dropping particles into them. In


Gravitational Collapse and Cosmic Censorship
It has long been known that under a wide variety of circumstances, solutions to Einstein’s equation with physically reasonable matter must develop singularities [1]. In particular, if a sufficiently
Gravitational collapse, black holes and naked singularities
This article gives an elementary review of gravitational collapse and the cosmic censorship hypothesis. Known models of collapse resulting in the formation of black holes and naked singularities are
General Relativity; an Einstein Centenary Survey
List of contributors Preface 1. An introductory survey S. W. Hawking and W. Israel 2. The confrontation between gravitation theory and experiment C. M. Will 3. Gravitational-radiation experiments D.
PROF. H. A. WILSON is best known for his experimental researches, but this book shows that he is also able to give clear expositions of the more theoretical aspects of modern physics. As he has
Phys. Rev. D4
  • Phys. Rev. D4
  • 1971
Phys. Rev. D
  • Phys. Rev. D
  • 1974
Theor. Phys
  • Theor. Phys
  • 2001
Phys. Rev. D
  • Phys. Rev. D
  • 1980
Phys. Rev. D
  • Phys. Rev. D
  • 1979
J. Phys. A: Math. Gen
  • J. Phys. A: Math. Gen
  • 1982