Joshua Rosaler

My research studies mathematical and conceptual aspects of the relationship between quantum and classical theories, and between different quantum theories. I am particularly interested in understanding how the frameworks of quantum mechanics and quantum field theory, which describe the remote realm of elementary particles, relate to theories such as classical mechanics and electromagnetism that are used to describe macroscopic phenomena. I am a postdoctoral fellow at the Institute for Theoretical Particle Physics and Cosmology at RWTH Aachen University, working as part of the DFG-funded "Epistemology of the Large Hadron Collider" project. My work focuses on problems relating to effective field theory, the Higgs naturalness principle, and topics in the foundations of renormalization theory. I completed my doctorate at the University of Oxford under the supervision of David Wallace and Simon Saunders. Before coming to Oxford, I obtained my masters degree from Columbia University under David Albert and Allan Blaer, and my bachelors degree at Harvard University, where I worked as a computer programmer in the High Energy Physics Laboratory. In my spare time, I am an avid blues guitar player, occasional popular science writer, and obsessive Roger Federer fan.