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Course Info



Lecture Notes


PHY 418: Statistical Mechanics I
Prof. S. Teitel stte@pas.rochester.edu ---- Spring 2018


January | February | March | April | May

Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2

lecture 20

Partition functions for non-interacting quantum and classical ideal gas in the occupation number representation, average occupation number, the classical vs quantum limits of the ideal gas

3 4

lecture 21

The quantized harmonic oscillator as bosons, the Debye model for the specific heat of a solid

HW#5 due

5 6 7
8 9

lecture 22

Black body radiation, the quantum ideal gas, standard functions, pressure, particle density, energy

10 11

lecture 23

Leading quantum correction to the ideal gas equation of state, the degenerate Fermi gas, Fermi energy, ground state energy, specific heat

12 13 14
15 16

lecture 24

Chemical potential of a degenerate Fermi gas at finite temperature, Pauli paramagnetism


The Sommerfeld expansion

HW#6 due

17 18

lecture 25

The ideal Bose gas, Bose-Einstein condensation in an ideal gas of free bosons

19 20 21
22 23

lecture 26

Classical spin models, constant magnetization vs constant magnetic field ensembles, broken symmetry and the possibility for a phase transition in the thermodynamic limit, Ising phase diagram


HW#7 due by noon in hw locker


lecture 27

Mean-field solution of the Ising model, critical exponents

26 27 28
29 30

lecture 28

Mean-field solution and critical exponents continued, Maxwell construction, exact solution of the one dimensional Ising model