I am working as an Interdisciplinary Postdoctoral Researcher at the Perimeter Institute for Theoretical Physics in Waterloo, Ontario, Canada. My main research interests are quantum cosmology, symmetry breaking (especially of Lorentz invariance) in gravity, and mathematical and physical aspects of connection-based formulations of gravity.
Before joining PI in January 2012 I was a postdoctoral fellow at the Albert Einstein Institute in Potsdam, Germany. Until late 2010 I did my Ph.D. in the Relativity & Gravitation Group at DAMTP, Cambridge, under the supervision of Prof. Gary Gibbons. In winter 2012-13 I was also a Riemann Fellow at the Riemann Center for Geometry and Physics, Hannover. For more information see my CV .
As an Interdisciplinary Postdoctoral Researcher, I aim to connect various non-perturbative approaches to quantum gravity, which often involve some form of discrete structures, to more conventional physical theories based on general relativity. At the moment I am focussing on the derivation of classical cosmology from fundamental quantum gravity, various models of quantum cosmology, and the role of Lorentz invariance in canonical gravity. More on my research pages.
Email: sgielen 'at' perimeterinstitute.ca
Random Fact: According to MathSciNet, my Erdös and Einstein numbers are both 5.