In a context of quantum mechanics, why does:
$$ \langle x | p \rangle = \left(\frac{1}{2\pi\hbar}\right)^{3/2} e^{ipx/\hbar} $$
Is there any proof for this?
In a context of quantum mechanics, why does:
$$ \langle x | p \rangle = \left(\frac{1}{2\pi\hbar}\right)^{3/2} e^{ipx/\hbar} $$
Is there any proof for this?