Semiclassical limit of the Dirac equation and spin precession
classification
🪐 quant-ph
keywords
equationdiracspinaccordingclassicalelectronexternalfollows
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We study the Dirac equation with slowly varying external potentials. Using matrix-valued Wigner functions we prove that the electron follows with high precision the classical orbit and that the spin precesses according to the BMT equation with gyromagnetic ratio g=2.
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