Abstract
The spectral dimension is calcualted for the diffusion-limited aggregation model of colloids and dendritic growth; here is the fractal dimension of the aggregate, and the fractal dimension of a random walk on the cluster substrate. is found for , to within the accuracy of the present Monte Carlo calculations. Thus Witten-Sander aggregates may possess the same remarkable "superuniversality" discovered for percolation clusters and argued to possibly hold for all homogeneous fractals.
- Received 4 August 1983
DOI:https://doi.org/10.1103/PhysRevLett.51.1457
©1983 American Physical Society