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Black hole collapse and bounce in loop quantum gravity

Feb 15
Group Seminar
2:00 pm o'clock to 3:30 pm o'clock
Prof. Edward Wilson-Ewing (University of New Brunswick)
Non-local QG seminar Lyon (Zoom)

I will present some recent work studying quantum gravity effects during the collapse of spherically symmetric pressureless dust, using effective equations derived from a loop quantization of Lemaître-Tolman-Bondi space-times. Numerics show that for initial conditions that lead to the formation of black holes: (i) trapped surfaces form and subsequently disappear as an initially collapsing density profile evolves into an outgoing shockwave; (ii) the black hole lifetime is proportional to the square of its mass; and (iii) there is no mass inflation at inner apparent horizons. I will also briefly discuss some implications of these results for observations and the black hole information loss problem.