In Fig. 1 the fractal pattern is shown for the diffusion-limited aggregation
(DLA) model [1] in 2 d. The fractal dimension  agrees with the theoretical result
proposed by Tokuyama, et al [2].
References
[1] T. A. Witten and L. M. Sander, Phys. Rev. Lett. 47 (1983) 1400.
[2] M. Tokuyama and K. Kawasaki, Physics Letters A 100 (1984) 337-340 |
Fig. 1
(simulated by Y. Terada)
|