The velocity and angular momentum of a free Dirac electron
classification
⚛️ physics.gen-ph
keywords
angularcommutesdiracelectronfreehamiltonianmomentummotion
read the original abstract
It is shown that, in Dirac theory, there is a spatial velocity of a free electron which commutes with the Hamiltonian, so it is a conserved quantity of the motion. Furthermore, there is a spatial orbital angular momentum which also commutes with the Hamiltonian and is a constant of the motion.
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