Diferencies ente revisiones de «Electrodinámica cuántica»

{{Ecuación|<math> \part_partial_\nu \left( \frac{\partpartial \mathcal{L}}{\partpartial ( \part_partial_\nu A_\mu )} \right) - \frac{\partpartial \mathcal{L}}{\partpartial A_\mu} = 0 \quad \mbox{con} \begin{cases} \part_partial_\nu \left( \frac{\partpartial \mathcal{L}}{\partpartial ( \part_partial_\nu A_\mu )} \right) = \part_partial_\nu \left( \partpartial^\mu A^\nu - \partpartial^\nu A^\mu \right)\\ \frac{\partpartial \mathcal{L}}{\partpartial A_\mu} = -y\bar{\psi} \gamma^\mu \psi \end{cases}</math>|3|left}}