Nonlocal effects in classical and quantum theories

  title={Nonlocal effects in classical and quantum theories},
  author={D. Wisnivesky and Y. Aharonov},
  journal={Annals of Physics},
Abstract Quantum effects of electromagnetic potentials are analyzed further. It is shown that other theories, both classical and quantum mechanical, exhibit analogous effects. Examples from classical general relativity, Yang-Mills theory, and quantum field theory are discussed. It is concluded that effects of this kind are not necessarily quantum mechanical in nature and not necessarily related to the appearance of non-gauge-invariant potentials in the formulation of the theory.