I'm building a new webpage of quantum gravity resources:
Check out my new paper with Aristide Baratin: 2-Group Representations for Spin Foams. In this little 8-page paper, we explain "2-groups", their representation theory, and how they can be used in spin foam models. It serves as an introduction, especially for physicists and topologists, for our long article Infinite-Dimensional Representations of 2-Groups, written with John Baez and Laurent Freidel, and relates this paper to the Baratin-Freidel spin foam model. This relationship was the reason we started studying 2-group representations in the first place.
I also have a recent article in a special collection dedicated to Élie Cartan:
Symmetric space Cartan connections and gravity in three and four dimensions, SIGMA 5 (2009), 080, 18 pages.
Two other recent papers, on "topologically massive gravity", with coauthors Steve Carlip, Stanley Deser, and Andrew Waldron:
Last academic year, Andrew Waldron and I organized a year-long program on "Quantum Geometry", including a topics course on Gauge Theory and Gravity.
Thesis: Topological Gauge Theory, Cartan Geometry, and Gravity
Advisor: John C. Baez
My current research is in quantum gravity, geometry, and category theory. Here are some of the subjects I've worked on:
Much more information can be found on my research page, or you can just take a look at my list of papers.
When I was an undergraduate, I did research in experimental particle physics. I spent 5 summers working at FermiLab and a few months at Paul Scherrer Institue. I don't work on particle physics any more, but big experiments like the one I worked on at FermiLab (E866) take a long time to analyze data and publish results, so I have several particle physics papers, some of them fairly recent, even though my direct contribution to the experiment was back when we were building the detector array and collecting the data.
I am currently teaching Math 16A (Short Calculus).
I have been teaching in some capacity since about 1994, when I was an undergraduate lab instructor. I enjoy working with students. To see a list of math and physics courses I've taught, click here.
Here are some of the things you can find on this site:
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