Black hole or Fuzz ball or a Loop quantum star ? Assessing the fate of a massive collapsing star
arXiv:1912.05300
Abstract
Using the effective equations in our Loop Quantum Cosmology (LQC) -- inspired models, we resolve the dimensional black hole singularity. This resolution in the four dimensional case is same as that given recently by Ashtekar, Olmedo, and Singh. We then study the fate of a massive collapsing star in dimensions, focussing on a singularity resolved black hole, a string theoretic fuzz ball, and a Loop quantum star -- which is a solution to the the effective modified equations for static spherically symmetric stars we obtained recently using LQC ideas. We find qualitatively that a massive collapsing star is likely to become a Loop quantum star : it is likely to have a macroscopic core region with Planckian densities and pressures which is surrounded by a low density corona region extending to the Schwarzschild radius.
arXiv commentVersion 1. 17 pages. Version 2. 18 pages. A note and a few references added
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