Recent content by >>S/Z<<

Homework Statement I'm working with a complex scalar field with the lagrange density L= \partial_{\mu} \phi^{\ast} \partial^{\mu} \phi - m^2 \phi^{\ast} \phi And I've shown that's its hamilton density H= \int d^3 x ( \pi^{\ast} \pi + \nabla \phi^{\ast} \cdot \nabla \phi + m^2 \phi^{\ast}...

Sorry about that! My first post so not familiar with it all yet Okay so just use the Euler-Lagrange equation on the full Lagrange. Thanks for the reply:)!

Homework Statement 2N classical, real, scalar fields \phi_i (x^{\nu}) \psi_i (x^{\nu}) ,where i=1,...,N I have to find the equations of motions for \phi_i (x^{\nu}) \psi_i (x^{\nu}) Lagrange density is given by L= \sum_{i=1}^N (\frac{1}{2}(\partial_{\mu} \phi_i \partial^{\mu}...