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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:07090011  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Propagation and interaction of topological invariants on embedded 4-valient spinets
Speaker(s): Yidun Wan
Abstract: The study of particle-like excitations of quantum gravitational fields in loop quantum gravity is extended to the case of four valent graphs and the corresponding natural evolution moves based on the dual Pachner moves. This makes the results applicable to spin foam models. We find that some braids propagate on the networks and they can interact with each other, by joining and splitting. The chirality of the braid states determines the motion and the interactions, in that left handed states only propagate to the left, and vise versa.
Date: 07/09/2007 - 3:00 pm
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