PIRSA:15060006

Black hole decay and Fast Radio Bursts

APA

Rovelli, C. (2015). Black hole decay and Fast Radio Bursts. Perimeter Institute. https://pirsa.org/15060006

MLA

Rovelli, Carlo. Black hole decay and Fast Radio Bursts. Perimeter Institute, Jun. 04, 2015, https://pirsa.org/15060006

BibTex

          @misc{ pirsa_PIRSA:15060006,
            doi = {10.48660/15060006},
            url = {https://pirsa.org/15060006},
            author = {Rovelli, Carlo},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Black hole decay and Fast Radio Bursts},
            publisher = {Perimeter Institute},
            year = {2015},
            month = {jun},
            note = {PIRSA:15060006 see, \url{https://pirsa.org}}
          }
          

Carlo Rovelli Centre de Physique Théorique

Collection
Talk Type Scientific Series
Subject

Abstract

Quantum effects render black holes unstable.  Besides Hawking radiation there is another, genuinely quantum gravitational, source of instability: the Hajicek-Kiefer explosion via tunnelling to a white hole.  A recent result in classical general relativity makes this decay channel plausible: there is an exact external solution of the Einstein equations locally (but not globally) isometric to extended Schwarzschild, which describes an object collapsing into a black hole and then exploding out of a white hole. The tunnelling time can in principle be computed using Loop Quantum Gravity. If it is sufficiently short, present explosions of primordial black hole could be observables, opening a new observational window on quantum gravity. I discuss the possibility that these explosions could be related to the recently observed and mysterious Fast Radio Bursts.