Particle Accelerators inside Spinning Black Holes

Abstract

On the basis of the Kerr metric as a model for a spinning black hole accreting test particles from rest at infinity, I show that the center-of-mass energy for a pair of colliding particles is generically divergent at the inner horizon. This shows that not only are classical black holes internally unstable, but also that Planck-scale physics is a characteristic feature within black holes at scales much larger that the Planck length. The novel feature of the divergence discussed here is that the phenomenon is present only for black holes with rotation and in this sense it is distinct from the well known Cauchy horizon instability.

Erratum added

References in corpus (4)

• Kerr Black Holes as Particle Accelerators to Arbitrarily High Energy
• Spinning Black Holes as Particle Accelerators
• Comment on "Kerr Black Holes as Particle Accelerators to Arbitrarily High Energy"
• A Simplified Mathematical Model for the Formation of Null Singularities Inside Black Holes I - Basic Formulation and a Conjecture

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