I am interested in categorical approaches to the foundations of physics, particularly quantum theory. As such, I am especially interested in Abramsky and Coecke's framework of categorical quantum mechanics, of which I have investigated new models with Chris Heunen. More recently, I have been looking at how one may study the operational-probabilistic theories of Chribella et. al categorically, using Jacobs' language of effectus theory. For more on this, take a look at the pre-print Operational Theories of Physics as Categories.
My undergraduate and masters degrees were in Mathematics at the University of Cambridge.
Categories of relations as models of quantum theory
Chris Heunen and Sean Tull