## Physics 506: Quantum Mechanics II (Spring 2021)

### T Th 11:00-12:15, by zoom

**Office: 552 Reiss**

**Office Hours: Email me to set a time to meet.
**
Email: `james.freericks@georgetown.edu`

**Telephone: (202) 687-6159**

### Course Description

This course is an introduction to the more advanced ideas of quantum mechanics.
Our learning goals are for you to become agile with performing quantum
mechanics calculations at the level of a graduate student, and to provide
you with the minimum set of tools needed for independent research. In
addition, we intend to have you develop a better understanding of what
quantum mechanics means and how one interprets experiments with
quantum understanding.
We will begin with a development of quantum mechanics from an operator-based persepctive (covering spin, harmonic oscillator, coherent and squeezed states), then we develop the Schroedinger factorization method and apply it to spherical harmonics and hydrogen in coordinate and momentum space.
Then we review nondegenerate perturbation theory and develop
degenerate perturbation theory. Next we talk about scattering with an
application to alkali atoms and describe the phenomena of a Feshbach resonance.
We then describe time-dependent phenomena
in quantum mechanics, including time-ordered products, evolution operators,
and perturbation theory. We also briefly describe Fermi's golden rule,
the sudden approximation, and the creation of light from atomic
hydrogen. Next we will describe the interaction of atoms with lasers, describe what a photon really is, and then discuss how LIGO works.
Then we move onto Fermionic problems, starting with
the creation and annihilation operators and how they apply to simple
models of interacting particle, followed by a thorough discussion of the Hubbard
model, which illustrates many different correlated phenomena ranging from
antiferromagnetism to ferromagnetism.

**View this syllabus at
http://www.physics.georgetown.edu/~jkf/grad_quant2/grad_quant2.html.**

### Quantum Mechanics Developers we will meet in this course

### Some Advice

This course will have thirteen homework assignments. There are no tests scheduled due
to the online nture of the course.
Most of the readings come from
Gottfried's *Quantum Mechanics I: Fundamentals* and Ziman's *
Elements of Advanced Quantum Theory*, and original research articles.
Assigned reading must be completed **before** the viewing of the lecture where the material
will be presented. Note that we will be using more of a tutorial than lecture
style for the class. Class meetings on zoom will be used to help you in
areas that you are finding difficult, or to hep with the homework. It is
critical that you watch the videos before the zoom sessions.
Come prepared to think.

**Syllabus**

** Homework Schedule**

**Grading Policy**

Last modified January 20, 2021
Jim Freericks, Professor of Physics,
freericks@physics.georgetown.edu