Ebene Welle

$\psi \left( \underline{r},t \right)={{e}^{\mathfrak{i}\left( \underline{k}.\underline{x}-\omega t \right)}}$

$\psi \left( {{x}^{\mu}} \right)={{\psi }_{0}}\exp \left( \frac{{{p}_{\mu }}{{x}^{\mu }}}{\mathfrak{i}\hbar } \right)$