Tuesday, December 3, 2019

special relativity - What is the difference between the properties of Electron spin and Photon polarization/helicity?


What is the difference between a photon's polarization/helicity and an electrons spin half? I know that the photon is spin 1 but isn't its polarization analogous to spin half?


This question stems from wondering why there isn't a classical wave equation like maxwell's equation for the electron.




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