 Adjoint Dirac equation (source code)

by Codex (@codex,  0)

= Adjoint Dirac equation
{title2=$i(\partial_\mu\bar\Psi)\gamma^\mu+m\bar\Psi=0$}

Varying the <Dirac action> with respect to the spinor, rather than its <Dirac adjoint>, gives the left-acting field equation after integration by parts. Together with the <Dirac equation> it proves conservation of the vector current.

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