L2.3 Degenerate Perturbation theory: Example and setup

L2.4 Degenerate Perturbation Theory: Leading energy corrections

L1.1 General problem. Non-degenerate perturbation theory

L1.2 Setting up the perturbative equations

L2.1 Remarks and validity of the perturbation series

Pure vs. mixed quantum states

L3.1 Remarks on a 'good basis'

The Theory that Solves "Unsolvable" Quantum Physics Problems - Perturbation Theory

The Scientist Who Discovered the World's Most Beautiful Equation

MIT Introduction to Deep Learning | 6.S191

Degeneracy in QM

General Relativity Lecture 1

L1.4 First order correction to the state. Second order correction to energy

What is the i really doing in Schrödinger's equation?

The Simplest Math Problem No One Can Solve - Collatz Conjecture

L7.1 The WKB approximation scheme

L9.1 The interaction picture and time evolution

Perturbation Theory in Quantum Mechanics - Cheat Sheet

Understanding Quantum Mechanics #4: It's not so difficult!

L2.2 Anharmonic Oscillator via a quartic perturbation

Deriving 1st Order Perturbation Theory (Energy and Wavefunction Corrections)