SetTemporalComponent[p, val]
sets the value of the temporal component of a -vector , TemporalPair[ExplicitLorentzIndex[0],TemporalMomentum[p]]
to val
.
Overview, TC, TemporalPair, TemporalMomentum.
[]
FCClearScalarProducts
ClearAll[t]
[p, t]
SetTemporalComponent
[p] TC
[p + q] // ExpandScalarProduct TC
[p, q] // LorentzToCartesian SP