"Those of us engaged in
scientific research generally do it because we can't help it - because
Nature is the biggest and most complicated jumbo holiday crossword puzzle
you have ever seen" - Ed Hinds, New Scientist Sept.
1997
I am currently working on aspects of cosmology, particularly the Cosmic Microwave Background (CMB - the radiation left over from the big bang). I'm interested the theoretical models of the early universe, as well as comparing observations with cosmological models. I'm a PPARC Advanced fellow at the IoA Cambridge.
In addition I'm involved in the RIOJA project for open-access publishing.
Efficient computation of CMB anisotropies is closed FRW
models. Ap. J. 538:473-476, (2000).
astro-ph/9911177. See the CAMB home page.
Quadratic Lagrangians and Topology in Gauge Theory Gravity GRG 32:1, 161 (2000). gr-qc/9910039.
Electron Scattering in the Spacetime Algebra
In Clifford Algebras and their applications in mathematical
physics vol. 1, eds. R. Ablamowicz and B. Fauser, 2000.
Postscript
Electron scattering without spin sums Int. J. Theor. Phys. 40(1) (2001)
My PhD was with Anthony Lasenby at the Cavendish, Cambridge on applications of Geometric Algebra and
covariant methods in physics. GA is unifying mathematical framework for
dealing with geometric objects, subsuming vector calculus, complex
analysis, tensor calculus, differential forms, and more. I've written an
introduction to the subject which I hope should be quite accessible and
is now the second chapter of my thesis.
Download a Postscript
copy.
After my three years of PhD I spent two years postdoc at DAMTP in Cambridge. It then spent 2 and a half years at CITA, University of Toronto and 4 months at the CfA, Harvard. Now I'm back in Cambridge at the third department doing cosmology, the Institute of Astronomy.