Recent content by CSpring432

Hi Have been trying to solve the below question for a while, wondered if anyone could help. Considering the action $$S=\int -\frac{1}{2}\sum^2_{n,m=1} (\partial^{\mu}\phi_{nm}\partial_{\mu}\phi_{mn}+m^2 \phi_{nm} \phi_{mn})dx$$ under the transformation $$\phi'=e^{\alpha}\phi e^{-\alpha}$$...