Mass Inflation in the Loop Black Hole

Details Mass Inflation in the Loop Black Hole Mass Inflation in the Loop Black Hole

2011-04-15

arxiv.org/abs/1104.3126v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Latex 20 pages, 7 figures

Scientific paper

In classical general relativity the Cauchy horizon within a two-horizon black hole is unstable via a phenomenon known as mass inflation, in which the mass parameter (and the spacetime curvature) of the black hole diverges at the Cauchy horizon. Here we study this effect for loop black holes -- quantum gravitationally corrected black holes from loop quantum gravity -- whose construction alleviates the $r=0$ singularity present in their classical counterparts. We use a simplified model of mass inflation, which makes use of the generalized DTR relation, to conclude that the Cauchy horizon of loop black holes indeed results in a curvature singularity similar to that found in classical black holes. The DTR relation is of particular utility in the loop black hole because it does not directly rely upon Einstein's field equations. We elucidate some of the interesting and counterintuitive properties of the loop black hole, and corroborate our results using an alternate model of mass inflation due to Ori.

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