Static forces and virtual-particle exchange: Difference between revisions

Revision as of 18:10, 18 August 2010

Revision as of 18:15, 18 August 2010

Line 286:

\eta_{\mu \nu} \left ( \partial^2 + m^2\right ) D\left ( x-y \right ) = \delta_{\mu \nu} \delta^4\left ( x-y \right )

</math>.

Here, the [[spacetime]] metric is given by

:<math>\eta_{\mu\nu} = \begin{pmatrix}

1 & 0 & 0 & 0\\

0 & -1 & 0 & 0\\

0 & 0 & -1 & 0\\

0 & 0 & 0 & -1

\end{pmatrix}

.</math>

This yields