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Phys. Rev. E 63, 046117 (2001) [15 pages]

Diffusion-limited aggregation as a Markovian process: Site-sticking conditions

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Boaz Kol and Amnon Aharony
Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics and Astronomy, Tel Aviv University, 69978 Ramat Aviv, Israel

Received 20 September 2000; published 29 March 2001

Cylindrical lattice diffusion-limited aggregation, with a narrow width N, is solved for site-sticking conditions using a Markovian matrix method (which was previously developed for the bond-sticking case). This matrix contains the probabilities that the front moves from one configuration to another at each growth step, calculated exactly by solving the Laplace equation and using the proper normalization. The method is applied for a series of approximations, which include only a finite number of rows near the front. The fractal dimensionality of the aggregate is extrapolated to a value near 1.68.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.63.046117
DOI:
10.1103/PhysRevE.63.046117
PACS:
02.50.-r, 05.20.-y, 61.43.Hv