Dirac Orthogonality

#Physics

$\displaystyle \braket{ f | g }=\delta(p-p')$

• Orthogonality condition of continuous spectra
• $\displaystyle p$ is the momentum of $\displaystyle f$
• $\displaystyle p'$ is the momentum of $\displaystyle p'$
• $\displaystyle \delta$ is the dirac delta