Skip to main content
Physics

You are not logged in. Your edit will be placed in a queue until it is peer reviewed.

We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.

3
  • $\begingroup$ Thanks, that helped a lot. I think I'm almost there now but there remain a term proportional to $[\hat{\Phi}a_{\mu},[\partial_{\nu}\hat{\Phi},\hat{\Phi}]]$ and one with μ,ν interchanged in the calculation of Fμν. Not sure why they should vanish $\endgroup$
    – Othin
    Commented May 21, 2019 at 19:05
  • $\begingroup$ If you pull $a_{\mu}$ out of the commutator and use the first identity, you get something proportional to $(\partial_{[\mu} \hat{\Phi}) a_{\nu]}$. This cancels with a term from $\partial_{[\mu}(a_{\nu]} \hat{\Phi})$. $\endgroup$
    – Subhaneil Lahiri
    Commented May 21, 2019 at 20:17
  • $\begingroup$ Thank you, I had forgotten to differentiate the unit vector in the $a_{\nu}\hat{\Phi}$ terms, so I couldn't get the cancelation. It works now. $\endgroup$
    – Othin
    Commented May 21, 2019 at 20:31