Physics 12c
Statistical Mechanics
Spring 2012

Go to home page for Ph12b

Course description: An introductory course in statistical mechanics.

Class meetings: Tuesday and Thursday 10:30-11:55 am in 269 Lauritsen, starting April 3, 2012.

Feedback: If you want to send a comment about the course, click here.

Instructor: John Preskill, 206 Annenberg, X-6691, preskill@caltech.edu.
Office hours by appointment

Recitation leaders:

Michael Beverland, mbeverla@caltech.edu, office hours Tuesday 4pm, 119 Downs, or by appointment

Javier Duarte, jduarte@caltech.edu, office hours Wednesday 9:30 pm, 267 Lauritsen, or by appointment

 

Recitation sessions:

Michael Beverland: Tuesday 3 pm, 119 Downs
Javier Duarte: Wednesday 8:30 pm, 269 Lauristen

Graders:

Du Pei, dpei@caltech.edu
Kung-Yi Su, ksu@caltech.edu


Textbook: Thermal Physics (2nd edition) by Charles Kittel and Herbert Kroemer

We will cover most of the first 10 chapters of Kittel and Kroemer, plus part of Chapter 14 and some supplementary material.

Grading: Grades will be based on weekly problem sets (40%), a midterm (20%), and a final exam (40%).

Homework: Problem sets will be posted on this page on Thursday, and will be due in the Physics 12c IN-box outside 264 Lauritsen at 5:00 pm the following Thursday. Graded homework will be returned to the Physics 12b OUT-box in 264 Lauritsen by the following Monday morning. Solution sets will be posted on this page.

Extensions:
--
Unexcused late homework will be accepted for half credit up until one week after the due date; there is no credit if your assignment is more than one week late.
-- If your homework will be late for a good reason, you may request an extension before the assignment is due by sending email to that week’s grader.
-- One extension, for up to one week, is allowed without question (your silver bullet). Please put a note at the top of your problem set indicating that you are using your silver bullet.

Honor Code: Discussion with others is encouraged, but the work you hand in must be your own. In particular, do not use homework solutions from previous years or exams and exam solutions from previous years.

Lectures (tentative schedule):

  1. Apr 3. Counting states (lecture notes)
  2. Apr 5. Entropy and temperature (lecture notes)
  3. Apr 10. Boltzmann distribution and free energy (lecture notes)
  4. Apr 12. Ideal gas, mixing (lecture notes)
  5. Apr 17. Planck distribution (lecture notes, plus supplement)
  6. Apr 19. Debye theory, Johnson-Nyquist noise (lecture notes, plus supplement)
  7. Apr 24. Chemical potential, Gibbs distribution (lecture notes, plus supplement)
  8. Apr 26. Indistinguishable particles, thermodynamics of ideal gas (lecture notes)
  9. May 1. Fermi gases (lecture notes)
  10. May 3. Bose-Einstein condensation (lecture notes)
  11. May 8. BEC continued (lecture notes, BEC homepage, Physics World March 1997)
  12. May 10. Heat engines, laws of thermodynamics (lecture notes)
  13. May 15. Gibbs free energy (lecture notes)
  14. May 17. Equations of state (lecture notes)
  15. May 22. 1st and 2nd order phase transitions (lecture notes)
  16. May 24. Ditch Day
  17. May 29. Ferromagnetism (lecture notes)
  18. May 31. Landau theory of phase transitions and scaling
  19. Jun 5. Diffusion  (lecture notes)
  20. Jun 7. Viscosity, Maxwell’s demon (lecture notes, plus supplement)

 

Video of lectures (recorded in 2011) available here.

Sam Elder’s typed lecture notes (2010).

 

Ombudsfolks:: Aniruddha Bapat (Dabney), Ishan Khetarpal (Avery/Fleming/Ruddock), Randall Lin (Lloyd), Marec Serlin (Lloyd), Malvika Verma (Blacker), Eugene Vinitsky (Ricketts), Julia Ziac (Fleming).  Suggestions, comments, and complaints about the course can be conveyed through an ombudsperson, or through the comment form on this page. (Does someone from Page want to volunteer?)

Homework assignments: 
(Du grades the odd numbered problem sets, Kung-Yi grades the even numbered ones.)
Problem Set 1, due Apr 12. Solutions
Problem Set 2, due Apr 19. Solutions
Problem Set 3, due Apr 26. Solutions
Problem Set 4, due May 3. Solutions
Problem Set 5, due May 17. Solutions
Problem Set 6, due May 25. Solutions
Problem Set 7, due Jun 5. Solutions
Problem Set 8, due Jun 8. Solutions

Exams: 
Midterm exam, due May 10. Solutions
Fifty-seven exams were received. The median was 92 and the mean was 88. Twelve students scored 100.

Final exam, due Jun 15. Solutions
Fifty-five exams were received. The median was 76 and the mean was 76. Two students scored 100; ten scored above 95.

Grades: 
Final grades were determined using the formula Grade = 0.4(Homework) + 0.2(Midterm) + 0.4(Final).
The median final grade was 87 and the mean was 82.
The ranges for letter grades were:

A+       97-100
A         91-96
A-        85-90
B+       80-84
B         74-79
B-        68-73
C+       60-67
C         50-59
C-        45-49

There were 7 A+’s, 14 A’s, 12 A-’s, 6 B+’s, 12 B’s, 2 B-’s. 1 C+, 1 C-  (Total=55).

Please fill our the TQFR survey form. The feedback you provide is very helpful.

Have a great summer!