Course Name
Paradigms in Physics: Periodic Systems
Course Number
ph427
Year/Term
NoTerm-2022
Course Credits
4
Class meeting times
9 hours of lecture/discussion per week for five weeks.
Prerequisites
PH424, PH425
Course description
Quantum waves in position and momentum space; Bloch waves in one-dimensional periodic systems, and the reciprocal lattice; coupled harmonic oscillators; phonons.
Topic/Day
Activities
Resources
Homework Due
Day 1 10/31
Welcome & Overview
Day 2 11/1
Bound States for the Finite Well

Reading: McIntyre 5.5

Bound States PhET

Day 3 11/2
Qualitative (Eyeball) Solutions for a Bumpy Well
Reading: McIntyre 5.10.1
Day 4 11/3
Free Particle
Free Particle Energy Eigenstates
Free Particle Momentum Eigenstates & de Broglie Wavelength
Day 5 11/4
Intro to Momentum Space
Day 6 11/7
Definition of Fourier Transform and Inverse

Reading: Fourier Transforms

Reading: McIntyre Appendix D: Waves & Fourier Analysis

Day 7 11/8
Intro to Wave Packets: Discrete Superposition
Gaussian Functions
Day 8 11/9
Gaussian Wave Packets

Reading: McIntyre 6.2

Wave Packet PhET

Day 9 11/10
Momentum Representation Operators
Day 10 11/14
Uncertainty Principle
Reading: McIntyre 6.3
Day 11 11/15
Unbound States & Scattering
Day 12 11/16
Day 13 11/17
2 Coupled Oscillators
Day 14 11/18
2 Coupled Oscillators
Day 15 11/21
Ring of 4 Oscillators
Day 16 11/22
Normal Modes & Translational Symmetry
Day 17 11/23
N Oscillators
Day 18 11/28
Infinite Oscillators in a Ring
Day 19 11/29
LCAO: Energy Eigenstates of a Two-Well Chain
Reading: McIntyre 15.1.1
Day 20 11/30
LCAO: Energy Eigenstates of an N-Well Chain
Reading: McIntyre 15.1.2
Day 21 12/1
Band Structure
Reading: McIntyre 15.4
Bloch's Theorem & the Molecular States
Reading: McIntyre 15.5
Density of States
Reading: McIntyre 15.7
Day 22 12/2
Review
Final Exam 12/8 @noon-2pm