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Laurent Freidel

Laurent Freidel is a physicist, working at the Perimeter Institute for Theoretical Physics in Waterloo, Ontario, Canada. He is working in loop quantum gravity and spin foam models of quantum gravity. He has recently coauthored a series of papers on the Ponzano-Regge model, a spin foam model of 3-dimensional Riemannian quantum gravity, in which he explains how point particles naturally arise in this theory.