Physical aspects of naked singularity explosion - How does a naked singularity explode? --

Abstract

The behaviors of quantum stress tensor for the scalar field on the classical background of spherical dust collapse is studied. In the previous works diverging flux of quantum radiation was predicted. We use the exact expressions in a 2D model formulated by Barve et al. Our present results show that the back reaction does not become important during the semiclassical phase. The appearance of the naked singularity would not be affected by this quantum field radiation. To predict whether the naked singularity explosion occurs or not we need the theory of quantum gravity. We depict the generation of the diverging flux inside the collapsing star. The quantum energy is gathered around the center positively. This would be converted to the diverging flux along the Cauchy horizon. The ingoing negative flux crosses the Cauchy horizon. The intensity of it is divergent only at the central naked singularity. This diverging negative ingoing flux is balanced with the outgoing positive diverging flux which propagates along the Cauchy horizon. After the replacement of the naked singularity to the practical high density region the instantaneous diverging radiation would change to more milder one with finite duration.

18 pages, 16 figures

Cited by in corpus (12)

• Black hole and brane production in TeV gravity: A review
• Tunnelling Methods and Hawking's radiation: achievements and prospects
• Numerical Approaches to Spacetime Singularities
• Can black holes and naked singularities be detected in accelerators?
• Teukolsky-Starobinsky Identities - a Novel Derivation and Generalizations
• Effects of Lovelock terms on the final fate of gravitational collapse: analysis in dimensionally continued gravity
• Gravitational collapse and naked singularities
• Applications of the Tunneling Method to Particle Decay and Radiation from Naked Singularities
• Classical and Quantum Gravitational Collapse in d-dim AdS Spacetime I. Classical Solutions
• Energy emission from high curvature region and its backreation
• Hamilton-Jacobi Method and Gravitation
• Reissner Nordström Background Metric in Dynamical Co-ordinates: Exceptional Behaviour of Hadamard States