Info for students interested in theoretical physics

(this is obviously a work in progress...
If you have particular topics you'd like me to address, let me know and I'll add them to the site. )

What courses should I take?

Of course you should take the required major sequence courses in the Physics department:

Physics 23 - Dynamics of Particles and Systems, Waves
Physics 24 - The Maxwellian Synthesis: Dynamics of Charges and Fields, Optics
Physics 25 - Modern Physics
Physics 26 - Intermediate Lab
Physics 27 - Methods of Theoretical Physics
Physics 30 - Statistical Mechanics and Thermodynamics
Physics 43 - Dynamics
Physics 47 - Electromagnetic Theory I
Physics 48 - Quantum Mechanics I

and if possible the advanced electives:

Physics 52 - Advanced electromagnetism
Physics 53 - Quantum mechanics II
Physics 98 - Senior Honors (which counts for three courses: one in the fall and two in the spring).

There are also two required math courses:

Math 11 - Introduction to the Calculus
Math 12 - Intermediate Calculus.

Some computer programming experience, perhaps acquired in a computer science course, may also prove to be useful.

In addition, depending on student (and faculty) interest and available manpower, we hope to offer some interesting electives. Recent upper-level electives include:

Physics 40 - Topics in Contemporary Physics [last offered S01]
Physics 60 - Particle Physics [last offered S02]
Physics 75 - Advanced Statistical Mechanics [last offered F01]
Physics 76 - Quantum Information, Quantum Measurement and Quantum Computing [last offered S06]
Physics 80 - General Relativity [last offered F03, and as a reading course in 04 and 05 ].

We sometimes offer reading courses to students interested in subjects not currently taught. This depends a bit on faculty interest and expertise and on what time we have available. Ask any of us for details.

Examples of possible reading courses might include:

Symmetry methods (Group theory for physics)
Supersymmetry
Quantum field theory
Classical field theory
Gauge theory
Advanced statistical mechanics
Advanced classical mechanics
Fluid dynamics
Condensed matter physics
Geometrical methods of mathematical physics
Statistics and probability in physics
Computational physics
Nonlinear dynamics/chaos
Particle physics
General relativity
Cosmology
Group theory for physics
Classical optics
Quantum optics
Path integrals
String theory
Physics of sports
Physics of music
Waves
Foundations of quantum mechanics
Mechanics of solids
Biophysics
Stochastic processes
Nuclear physics
Atomic physics
Environmental physics
Atmospheric physics
Control theory
Operator theory in physics
Physics of finance

Also, the other colleges and UMass offer a range of advanced courses each year (including graduate courses at UMass). Look at the Five College Course Catalog for ideas, or come talk to me for suggestions.

Theoretical physics is math-intensive, and there are several courses in the math department that could be especially useful. In particular, I'd recommend at a bare minimum:
Multivariable calculus
Linear Algebra.

Some of the material in these courses is covered in less detail in Physics 27. Since Physics 27 is a relatively new course and its syllabus is still evolving, check with the instructors to see how great the overlap will be.

If your schedule permits, the following courses (roughly in order of importance) could be useful for theoretical physics:

Differential equations
Functions of a complex variable
Differential geometry
Functions of a real variable
Groups, Rings and Fields
Topology
Introduction to statistics

Perhaps the most important math course that's not taught regularly in the physics or math departments is what I'd call Symmetry Methods in Theoretical Physics. Physicists loosely refer to the subject as Group Theory in Physics, but the title can be a bit deceptive. What is considered interesting in group theory to physicists is not what is usually covered in introductory math courses on Groups, Rings and Fields. If you want to study symmetry methods and group theory from a physics perspective, a reading course in the physics department may be your best option.

Courses in number theory, logic, and set theory tend to be less useful to physicists. You should of course take such courses our of interest in the subject, not because you think they will be useful in studying theoretical physics.

Some sample schedules:

No advanced placement, only the essentials:
(9 physics + 2 math + 21 other courses)

First Year: Fall semester
Physics 23: Newtonian Synthesis
Math 11: Calculus I
First Year Seminar
one other course
First Year: Spring semester
Physics 24: Maxwellian Synthesis
Math 12: Calculus II
two other courses
Second Year: Fall semester
Physics 25: Modern Physics
Physics 27: Methods of Theoretical Physics
two other courses
Second Year: Spring semester
Physics 26: Intermediate Laboratory
Physics 30: Statistical Mechanics
two other courses
Third Year: Fall semester
Physics 43: Mechanics
Physics 47: Electrodynamics
two other courses
Third Year: Spring semester
Physics 48: Quantum Mechanics
three other courses
Fourth Year: Fall semester
four courses
Fourth Year: Spring semester
four courses


No advanced placement, the essentials + thesis:
(12 physics + 2 math + 18 other courses)

First Year: Fall semester
Physics 23: Newtonian Synthesis
Math 11: Calculus I
First Year Seminar
one other course
First Year: Spring semester
Physics 24: Maxwellian Synthesis
Math 12: Calculus II
two other courses
Second Year: Fall semester
Physics 25: Modern Physics
Physics 27: Methods of Theoretical Physics
two other courses
Second Year: Spring semester
Physics 26: Intermediate Laboratory
Physics 30: Statistical Mechanics
two other courses
Third Year: Fall semester
Physics 43: Mechanics
Physics 47: Electrodynamics
two other courses
Third Year: Spring semester
Physics 48: Quantum Mechanics
three other courses
Fourth Year: Fall semester
Senior honors thesis (counts as one course)
three other courses
Fourth Year: Spring semester
Senior honors thesis (counts as two courses)
two other courses


One year of calculus and one semester of introductory mechanics advanced placement, the essentials + thesis + some suggested electives for the grad-school bound:


First Year: Fall semester
Physics 27: Methods of Theoretical Physics
First Year Seminar
two other courses
First Year: Spring semester
Physics 24: Maxwellian Synthesis
three other courses
Second Year: Fall semester
Physics 43: Mechanics
Physics 25: Modern Physics
two other courses
Second Year: Spring semester
Physics 30: Statistical Mechanics
Physics 26: Intermediate Laboratory
two other courses
Third Year: Fall semester
Physics 47: Electrodynamics
three other courses
Third Year: Spring semester
Physics 48: Quantum Mechanics
Physics 52: Electrodynamics II
two other courses
Fourth Year: Fall semester
Senior honors thesis (counts as one course)
Physics 53: Quantum Mechanics II
two other courses
Fourth Year: Spring semester
Senior honors thesis (counts as two courses)
Physics 60: General Relativity
one other course


As an undergraduate, can I really do a thesis in theoretical physics?

Yes. Typically one or two theses in the department each year are primarily theoretical in nature, and experimental theses often require a good measure of theoretical work in elaborating the theory behind the experiment. The results of the work are sometimes written up to be published in major physics journals, and students are typically co-authors on these papers.



Some recent theses:
2005:
Nathaniel Reden
Tarun Menon
2004:
Mark Wheeler
Matt Willis
Nate Powell
Solomon Granor
Michael Reed
Douglas Orbaker
2003:
Jessica Cabot
Ted Reber
Andrew Foss
Oliver Elliot
2002:
Ross O'Connell
Scott Owen
Mike Niemack
Catherine Deibel
Rebecca Erwin
Matt Hummon
Anne Kemble
2001:
Keith Ulmer
Ben Samelson-Jones
Chris Bednarzyk
Matt Taylor
2000:
1999:

How should I proceed if I want to do thesis work in theoretical physics? Do I need any special preparation?

There is tremendous variation among possible thesis topics and the corresponding prerequisites. Any student that has completed all (or even most) of the courses in the physics major sequence is prepared for a broad range of possible theory topics. However, to work in some subjects, especially those which are not covered in detail in the major sequence, I would strongly recommend some additional preparation prior to undertaking thesis work. This additional preparation might entail taking one of the electives, a graduate course at UMass, or a reading course on the topic of interest. For example, a student interested in thesis work in theoretical particle physics might benefit from taking the particle physics elective, and a student interested in a string theory thesis might take a reading course in string theory or a graduate course at UMass (although, depending on the student and the project, these might not be necessary). While it would be ideal to take additional courses before undertaking the thesis, taking those courses in the senior year simultaneous to thesis work might also be beneficial (although again, perhaps not necessary). Some of these courses may have their own prerequisites, so some attention to scheduling may be necessary. I encourage you to consult with me or one of the other faculty as far in advance as possible, so that you can anticipate what courses will be available and appropriate to the work you want to do. Don't assume you know can figure it out yourself from reading course catalogs... come and talk to us.

Doing summer work with a faculty supervisor can be a useful way to try out theoretical work and get in some background work for a thesis. The options for summer work available to you depend on which faculty are around over the summer, what sources of funding are available to support you over the summer (from the faculty supervisor's own grant, the College, external grants, or other sources), and the particulars of your own background (the courses you've taken, your interests, you experience with computers and computer programming, etc.). In the early stages of your college career not all summer theory projects would likely be appropriate for you, but even early on there are usually interesting projects that you can undertake. Since funds are limited and there are often deadlines for applications, it is important to discuss the possibilities with faculty well in advance of the summer so that they can be aware of your interest and so they can let you know what steps to take and when to take them. In the fall or early in the spring semester is not too early to drop in and talk to faculty about summer work. [The deadline for Hughes Foundation grants is March 1.] Don't wait until the end April to think about it! (Although if you do, come by and talk to us anyway; we may still be able to arrange something. The department very much want to help all students, and especially our majors, get the research experiences that want.)

What is it like to do thesis work in theory? Is it all on computer? Do I have to come up with my own new theories?

What sort of theoretical physics do faculty at Amherst study?

Lots. The Amherst College Physics department web page lists some faculty interests. Two of us, Professor Jagannathan and myself (Prof. Loinaz), describe ourselves as theoretical physicists, but most of the rest of the physics faculty do theoretical work at least occasionally, and many have or would supervise theoretical senior theses. In the future I'll add some of the theoretical research interests of the faculty here, as well as a list of theoretical senior theses supervised.



What sort of theoretical physics do faculty in the Five College area study?

There's an active community of theoretical physicists in the Five College area. The Five College Physics Website contains descriptions of the activities of some faculty members and links to their web pages. I'll add some additional descriptions here myself later.



Are there theoretical physics talks in the Five College area that I can attend?

Quite a few. Amherst College has a weekly colloquium series during the academic year that often features theorists. The talks are Thursdays at 4:45 in Merrill 3, with refreshments in at 4:15 in Merrill 204. All are welcome, to both the refreshments and the colloquium. I'll add information about talks at UMass and the other colleges later.



Have any Amherst alumni gone on to study theoretical physics in graduate school?

Over the past several years, one or two physics majors per year go on to graduate schoolwith the intent to study theoretical physics. I'll add details later, but since I've been here our graduates have gone to Caltech (2), University of Washington, University of Michigan at Ann Arbor, University of Pennsylvania, the Institute for Mathematical Sciences in Chennai, India, and the University of Maryland to study theoretical physics.



Say I want to study theoretical physics in graduate school? How should I proceed? Do I need to do a senior thesis in theoretical physics?