Physics · self-study course
Analytical and statistical mechanics
Use Lagrangian and Hamiltonian methods, then interpret canonical ensembles.
3 lessons24 quiz questionsAdvanced university
Your learning path
- 01
Euler-Lagrange equations and constraints
For L(q,qdot,t), stationarity of S=∫L dt with fixed endpoints yields d/dt(∂L/∂qdot)−∂L/∂q=0.
Advanced university · Notes · 8 questions - 02
Hamilton equations, phase space and Poisson brackets
For a regular Lagrangian, p=∂L/∂qdot and H=p qdot−L after expressing qdot in terms of q,p,t.
Advanced university · Notes · 8 questions - 03
Canonical ensembles and partition functions
For a system at inverse temperature β=1/(kBT), the canonical probability of a microstate of energy E is exp(−βE)/Z.
Advanced university · Notes · 8 questions