Mean field theories
- Introduction
- Weiss mean field theory for the Ising model
- Critical exponents of Weiss mean field theory for the Ising model
- Hubbard-Stratonovich mean field theory for the Ising model
- Variational methods
- Bragg-Williams approximation for the Ising model
- Bragg-Williams approximation for the Potts model
- Mean field theory for the Blume-Emery-Griffiths model
- Mean field theories for fluids
- Van der Waals equation
- Mean field theories for weakly interacting systems
- Introduction to Landau theory
- Assumptions of the Landau theory
- Landau theory for the Ising model
- First-order phase transitions in Landau theory
- Liquid crystals
- Introduction: Ginzburg criterion
- Functional partition function and coarse graining
- Coarse graining procedure for the Ising model