deletions | additions       diff --git a/Quantizing K G equation.tex b/Quantizing K G equation.tex  index bd168dc..57adf9d 100644  --- a/Quantizing K G equation.tex  +++ b/Quantizing K G equation.tex 
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$$[\hat{\pi}(\mathbf{x}), \hat{\phi}(\mathbf{y})] = - i \hbar \delta^{(3)} (\mathbf{x} - \mathbf{y})$$  Example: For $\mathcal{L} = \frac{1}{2}\dot{\phi}^2 - \frac{1}{2}(\nabla \phi)^2 - \frac{1}{2}m^2 \phi^2$:  $$\mathcal{H} = \frac{1}{2} \pi^2 + \frac{1}{2} (\nabla \phi)$^2 \phi)^2  + \frac{1}{2} m^2 \phi^2$$ Note: this is not Lorentz inv.   \end{enumerate}