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Yet another formulation of the Dirac equation
Authors:James D Edmonds Jr
Institution:(1) Department of Physics, Bucknell University, Lewisburg, Pennsylvania
Abstract:The 2-by-2 Pauli matrix algebra is used to write the 1-by-4 Dirac field psgr in anequivalent 2-by-2 matrix eegr. The current 4-vectors 
$$\bar \psi \gamma _\mu  \psi $$
and eegr*sgrµeegr are then compared and the latter is shown to not be easily interpretable as a probability density, and also tocontain 
$$\bar \psi \gamma _\mu  \psi $$
.
Keywords:
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