0 votes

You don't need to do anything special for this, just use a `\phi`

and perhaps give it a `Depends`

property to make it implicitly depend on a coordinate or derivative. If that doesn't help, can you say a bit more about what you are trying to do?

I am trying to find the equation(s) of motion for a complex scalar field lagrangian. I have to define the complex conjugate of scalar field '\phi'. Defining '\phi = \chi + i \xi' and '\phi^* = \chi - i \xi' is not working.

...