GM Jackson Physics and Mathematics

To prove the validity of the perturbation expansion, let's start with a simple and obvious statement: It seems intuitive that a va...

Start with a wave: Add more waves. Waves are in and out of phase with each other (constructive and destructive interference): The ...

In this post we once again derive the Heisenberg uncertainty principle, but this time we make use of the Schwartz inequality and the posit...

In this post we prove the Dirac Delta function and its sampling property. Here are the variables we need: So we ask, is equation 1 be...

In the field of quantum mechanics the Fourier transform shows the relationship between momentum/wave-number space, phi(k), and position sp...