Phase transitions in curie-weiss model

This lecture covers the concept of phase transitions in the Curie-Weiss model, explaining the differences between second and first-order transitions using the example of ferromagnetic and paramagnetic phases. The instructor discusses the behavior of spins in a magnetic field, illustrating how the system transitions between different phases based on temperature and magnetic field strength. The lecture also draws parallels between the Curie-Weiss model and real thermodynamic systems, emphasizing the importance of understanding phase diagrams and the critical points. Additionally, the instructor provides insights into the Laplace method as a tool for further analysis in the course.