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The static geometry of a black star

Jun. 23 - 14:30 - 2017

Speaker: Raúl Carballo (University of Cape Town)

 

Abstract:

The detection of gravitational waves has revived interest in theoretical scenarios in which black holes are replaced by horizonless ultra-compact configurations with a radius that is arbitrarily close to the Schwarzschild radius. The theoretical status of these hypothetical objects is however uncertain. In this seminar I will present some recent developments aimed at constructing these objects from robust theoretical building blocks. Using ingredients of quantum field theory in curved spacetimes, I will argue that semiclassical effects are able to provide the key element to construct horizonless ultra-compact configurations of a particular kind (at least in static scenarios).
 
Venue: Seminar Room Physics Department