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Black Hole evaporation: A Perspective from Loop Quantum Gravity | | Abhay Ashtekar
; | | Date: |
23 Jan 2020 | | Abstract: | A personal perspective on the black hole evaporation process is presented
using as guidelines inputs from: (i) loop quantum gravity, (ii) simplified
models where concrete results have been obtained, and, (iii) semi-classical
quantum general relativity. On the one hand, the final picture is conservative
in that there are concrete results that support each stage of the argument, and
there are no large departures from general relativity or semi-classical gravity
in tame regions outside macroscopic black holes. On the other hand it argues
against certain views that are commonly held in many quarters, such as:
persistence of a piece of singularity that constitutes a part of the final
boundary of space-time; presence of an emph{event} horizon serving as an
absolute barrier between the interior and the exterior; and the (often
implicit) requirement that purification must be completed by the time the ’last
rays’ representing the extension of this event horizon reach $mathcal{I}^{+}$. | | Source: | arXiv, 2001.8833 | | Services: | Forum | Review | PDF | Favorites | |
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