- #1
ChrisVer
Gold Member
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Well if I have a worldline given by [itex]x^{\mu}(\tau) [/itex]
And I want to make a Poincare transformation: [itex] x^{\mu} (\tau) \rightarrow \Lambda^{\mu}_{\nu} x^{\nu}(\tau) + a^{\mu}[/itex].
I have one question,why can't [itex]a, \Lambda[/itex] explicitly depend on [itex]\tau[/itex]? that is to have:
[itex] x^{\mu}(\tau) \rightarrow \Lambda^{\mu}_{\nu}(\tau) x^{\nu} (\tau)+ a^{\mu}(\tau)[/itex].
Somehow I have a feeling this would make the Poincare transformations local...
And I want to make a Poincare transformation: [itex] x^{\mu} (\tau) \rightarrow \Lambda^{\mu}_{\nu} x^{\nu}(\tau) + a^{\mu}[/itex].
I have one question,why can't [itex]a, \Lambda[/itex] explicitly depend on [itex]\tau[/itex]? that is to have:
[itex] x^{\mu}(\tau) \rightarrow \Lambda^{\mu}_{\nu}(\tau) x^{\nu} (\tau)+ a^{\mu}(\tau)[/itex].
Somehow I have a feeling this would make the Poincare transformations local...