Spin in quantum field theory
arXiv:hep-th/0507291 · doi:10.1007/3-540-38592-4_3
Abstract
I introduce spin in field theory by emphasizing the close connection between quantum field theory and quantum mechanics. First, I show that the spin-statistics connection can be derived in quantum mechanics without relativity or field theory. Then, I discuss path integrals for spin without using spinors. Finally, I show how spin can be quantized in a path-integral approach, without introducing anticommuting variables.
31 pages, 6 figures, latex with Springer svmult document class; typos corrected, refs 10-11 added