PSI 2018/2019 - Statistical Mechanics (Vieira)

Temperature, equivalence of ensembles for large numbers of particles, harmonic oscillator

Quantum vs. classical harmonic oscillator, classical thermalization of a table of oscillators

Correlation functions, universality and Feynman graphs for the classical table model

Gaussian integrals and Feynman graphs

Universality, spontaneous symmetry breaking in various dimensions for systems with discrete or continuous symmetries

Eigenstate thermalization hypothesis, XY model in the high-temperature and low-temperature limits

Correlations in the XY model at low temperature, importance of vortices in the XY model