Simon Fraser University
SFU Cosmology Seminars

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Tuesday, 1 March 2016, 15:00 in P8445B

Prof. Gabor Kunstatter (University of Winnipeg)

Formation and evaporation of nonsingular black holes in new 2d gravity

I will first briefly review the key features of the black hole information loss paradox and the famous "firewall" resolution of Almheiri, Marolf, Polchinski and Susskind. I will then go on to describe my own work on a different, considerably more mundane solution to the problem based on the observation that the singularity at the center of all black holes lies at the heart of the information loss conundrum. Specifically, I will present a new class of 2D effective actions that can be used to describe the formation and evaporation of non-singular black holes. We are currently completing numerical calculations that will hopefully show that the usual event horizon of the black holes in these theories is replaced by a compact trapping horizon that allows the information to emerge gradually as the black hole evaporates, thereby solving the information loss conundrum.

Seminars in 2015:

2015-10-30 14:30 in C9000 - Mark Halpern (UBC): Measuring the acceleration history of the Universe with CHIME (physics colloquium)
2015-11-06 14:30 in C9000 - John Kormendy (University of Texas at Austin): Supermassive black holes in galaxy nuclei: Coevolution (or not) of black holes and host galaxies (physics colloquium)
2016-03-01 15:00 in P8445B - Gabor Kunstatter (University of Winnipeg): Formation and evaporation of nonsingular black holes in new 2d gravity
2016-03-17 14:30 in P8445B - Francesc Ferrer (Washington University in St Louis): Managing astrophysical uncertainties in dark matter detection
2016-08-04 14:30 in P8445B - Alexander Vikman (IoP of the Czech Academy of Sciences): Canonical exorcism for cosmological ghosts

[ See complete seminar archives | iCal feed ]


Modified by Andrei Frolov <frolov@sfu.ca> on 2023-11-01