Seminar by Raul Carballo-Rubio
Talk time and date:
May 17th at 11:00 AM in Nicholson 241
Title: Exponential decay of black holes into white holes
Abstract: In recent years, it has been proposed by different authors that non-perturbative quantum gravity effects may turn black holes into white holes. To evaluate the characteristic time scale of this transition, a theory of quantum gravity that assigns probabilities to geometric interpolations between black hole and white hole geometries is needed. In this talk, I will explain the results that are obtained in a truncation of the problem that assigns probabilities à la Euclidean quantum gravity to a reduced set of interpolating geometries. I will show how an exact exponential decay law is found, extract the characteristic time scale that follows from it, and discuss the astrophysical relevance of this calculation.
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