Spin statistics, and geometry of random walks
@article{Jaroszewicz1991SpinSA, title={Spin statistics, and geometry of random walks}, author={T. Jaroszewicz and P. S. Kurzepa}, journal={Annals of Physics}, year={1991}, volume={210}, pages={255-322} }
We develop and unify two complementary descriptions of propagation of spinning particles: the directed random walk representation and the “spin factor” approach. Working in an arbitrary number of dimensions D, we first represent the Dirac propagator in terms of a directed random walk. We then derive the general and explicit form of the gauge connection describing parallel transport of spin and investigate the resulting quantum-mechanical problem of a particle moving on a sphere in the field of… CONTINUE READING
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