Name: Vladyslav Shtabovenko (email_not_shown)
Date: 10/12/16-12:23:31 PM Z


Hi,

can you provide an explicit code example?

Cheers,
Vladyslav

Am 10.10.2016 um 19:26 schrieb Sam:
> I am trying to evaluate matrix elements separately for the longitudinal and transverse polarizations of outgoing vectors, and this requires contracting against two separate matrices of the polarization sums. If I was evaluating the polarizations together, I would just do Contract[<<>>], but that doesn't work for what I want to do. So my question is: how do I assign Lorentz indices to these matrices, or otherwise contract these Lorentz tensors?
>
> Thanks for any help!
>



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