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Frontiers in Applied Math Colloquium I Luis GarayExport this event to calendar

Thursday, May 14, 2020 — 1:00 PM EDT

Zoom (for information email amug@uwaterloo.ca

Speaker

Luis Garay | Universidad Complutense de Madrid

Title

Dancing till the end of gravitational collapse: Black stars

Abstract

The gravitational collapse of massive stars serves to manifest the most severe deviations of general relativity with respect to Newtonian gravity: the formation of horizons and spacetime singularities. Both features have proven to be catalysts of deep physical developments, especially when combined with the principles of quantum mechanics. Nonetheless, it is hardly possible to combine all these developments into a unified theoretical model, while maintaining reasonable prospects for the independent experimental corroboration of its different parts. I will introduce a recent proposal that represents a set of bouncing geometries that regularize the classical singular behaviour and present modifications of the near-horizon Schwarzschild geometry as the result of the propagation of non-perturbative ultraviolet effects originated in regions of high curvature. I will also discuss how this proposal could change our present understanding of astrophysical black holes and even offer the possibility of detecting genuine ultraviolet effects on future gravitational wave experiments.

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