Purdue PHYS 342 L7.3: Pauli's Exclusion Principle: The Not-so-obvious Implications

Table of Contents:
00:09 Lecture 7.3: The not-so-obvious implications of Pauli's exclusion principle
00:37 Why don't electrons cascade into lowest energy state?
01:57 As an introduction, focus on He which contains two electrons
04:57 From experiment (see Appendix)
06:51 Schrödinger's Eq. for a two-electron system
10:31 Implication
13:10 This forces us to abandon the single particle 2-electron wavefunction
14:44 when a single particle 2-electron wavefunction is valid and when it breaks down?
16:19 Consider the following wavefunction for two distinguishable particles
18:45 What happens when two IDENTICAL particles are close together?
19:19 For two identical indistinguishable particles
21:25 From HMWRK No. 2
22:52 What to Do?
24:36 Physical origin of the Pauli Exclusion Principle

Purdue PHYS 342 provides an introduction to the physical principles underlying topics in Modern Physics. This course is intended to provide engineering undergraduate students with a firm base from which they can extend their understanding of the quantum world.