paper

Black hole singularities: a new critical phenomenon

arXiv:gr-qc/0209084 · doi:10.1103/PhysRevLett.90.121101

Abstract

The singularitiy inside a spherical charged black hole, coupled to a spherical, massless scalar field is studied numerically. The profile of the characteristic scalar field was taken to be a power of advanced time with an exponent . A critical exponent exists. For exponents below the critical one () the singularity is a union of spacelike and null sectors, as is also the case for data with compact support. For exponents greater than the critical one () an all-encompassing, spacelike singularity evolves, which completely blocks the ``tunnel'' inside the black hole, preventing the use of the black hole as a portal for hyperspace travel.

4 pages, 5 eps figures; An Erratum is added. The main conclusions of the original Letter are unchanged

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