18–19 Jun 2024
University of New Brunswick
Canada/Atlantic timezone
June 18-19, 2024

Quantum gravity of dust collapse

19 Jun 2024, 09:30
30m
307 (Tilley Hall, University of New Brunswick)

307

Tilley Hall, University of New Brunswick

Speaker

Edward Wilson-Ewing (University of New Brunswick)

Description

I will present a study on the quantum gravitational collapse of spherically symmetric pressureless dust. Using an effective equation derived from a polymer quantization in the connection-triad phase space variables of general relativity, numerics show, for a variety of initial dust configurations, that (i) trapped surfaces form and disappear as an initially collapsing density profile evolves into an outgoing shockwave; (ii) black hole lifetime is proportional to the square of its mass; and (iii) there is no mass inflation at inner apparent horizons. These results provide a substantially different view of black hole formation and subsequent evolution than found from semiclassical analyses.

Author

Edward Wilson-Ewing (University of New Brunswick)

Presentation materials