Answer by Tom Heinzl for Green's function for the inhomogenous Klein-Gordon...
I'm aware this is an old question and may be considered somewhat obsolete, but let me answer it nevertheless - if only for the sake of completeness.The position space representation of the Klein-Gordon...
View ArticleGreen's function for the inhomogenous Klein-Gordon equation
I'm trying to solve the massive Klein-Gordon equation in good old Minkowski space-time: $$(\square + m^2) \phi = \rho(t,\mathbf{x})$$ where $\square = \partial_{\mu} \partial^{\mu} = \partial_{t}^2 -...
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