PhD defence: Black Holes and Revelations

Promotie van E.J. Marcus MSc

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This research work is focused on investigating black hole physics from several different angles. Black holes earned their intimidating name by being so densely packed that not even light can escape them. Many questions remain about black holes; for example, what happens inside a black hole? Or, is there really a singularity at the center?

In this work, we consider black holes from various points of view, all motivated in some manner by string theory. String theory, as the name suggests, poses that the fundamental elements of the universe are strings (instead of particles). It is hoped that string theory can solve the problems with our current understanding of black holes.

We start off by considering black holes in string theory with so-called ‘duality twists’; such twists allow the breaking of symmetries that are present in string theory but not visible in our universe. Secondly, we embed certain rotating black holes into the machinery of string theory, allowing them to be studied in different manners. Furthermore, the machinery sets up an easier framework to find new black hole solutions.

In the last two parts of the thesis, we make use of a duality between gravitational theories and quantum theories that allows the study of either to learn about the other. In the ‘Sachdev-Ye-Kitaev’ chapter, we investigate extensions to a well-known low-dimensional quantum theory that is dual to a black hole. In the last part, we investigate the plasmas created at hadron colliders under the influence of large electromagnetic fields.

Start date and time
End date and time
Location
Academiegebouw, Domplein 29 & online (link)
PhD candidate
E.J. Marcus MSc
Dissertation
Black Holes and Revelations: Investigating Black Holes using String Theory, SYK-Models and Quark-Gluon Plasmas
PhD supervisor(s)
prof. dr. S.J.G. Vandoren
Co-supervisor(s)
dr. U. Gursoy
More information
Full text via Utrecht University Repository