Ising model

The 2D ferromagnetic Ising model: Onsager’s exactly solved second-order phase transition.

Critical slowing down: Metropolis vs. the Wolff cluster algorithm

Critical slowing down: Metropolis vs. the Wolff cluster algorithm

Finite-size scaling: extracting critical exponents

Finite-size scaling: extracting critical exponents

Watching criticality: the Ising lattice at T_C

Watching criticality: the Ising lattice at T_C

Onsager’s exact solution: the 2D Ising phase transition

Onsager's exact solution: the 2D Ising phase transition