Deriving the first order energy corrections in degenerate perturbation theory - QM 2
In this video I will derive the first order corrections to the energy levels of a degenerate state using perturbation theory. My name is Nick Heumann, I am a recently graduated physicist. I love to teach physics, so I decided to give YouTube a try. English is not my first language, but I hope that you can understand me well enough regardless. ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 00:00 Setting up the problem 04:10 Plugging in the degeneracy 7:28 Setting up equation 1 13:00 Defining matrix element Wij 14:45 Setting up equation 2 20:14 Solving the system of equations to find the energy corrections 29:40 Extending the solution for larger degeneracies
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