Ising Model — Finite-Size Scaling

Near T_c=2/ln(1+√2)≈2.269, the Ising model shows diverging susceptibility χ∝|t|^−γ and correlation length ξ∝|t|^−ν. Finite-size scaling: M L^β/ν collapses onto universal curves.

Exact 2D Ising: T_c≈2.269 | β=1/8 | γ=7/4 | ν=1 | η=1/4