Re: What is the velocity of a relativistic electron?

On Mar 8, 2:59 pm, DRLunsford <antimatte...@xxxxxxxxx> wrote:
On Mar 8, 10:27 am, "Juan R. González-Álvarez"

So what does psibar alpha psi represent? It's a group velocity
resulting from interference of the positive and negative energy
components of the spinor field. It is not vectorial, as a true
velocity must be, rather, the time-space part of a bivector, like the
electric field. That the expected value of it is always c is
physically interesting, but not in any way connected to the ponderable
velocity of the massive Dirac particle.

Oh I forgot to add, c is interesting in this context because it
amounts to an invariant expression of constraint upon the co-local
presence of matter and antimatter. These are tied together by the
conservation of charge, and also angular momentum. Hmm.

-drl


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