Diffusion on Fractal Lattices

Anomalous subdiffusion ⟨r²(t)⟩ ~ t^(2/d_w) on Sierpinski gasket and percolation cluster

Fractal Lattice

MSD vs Time (log-log)

Parameters

Hausdorff d_f:
Walk dim d_w:
Spectral dim d_s:
Measured slope:
Status: Ready
Spectral dimension: d_s = 2d_f/d_w
Sierpinski: d_f = log3/log2, d_w = log5/log2
Normal diffusion: d_w = 2, d_s = d_f
Alexander-Orbach conjecture: d_s ≈ 4/3