J. Phys. France
Volume 51, Numéro 19, octobre 1990
|Page(s)||2129 - 2134|
Non-universal roughening of kinetic self-affine interfacesYi-Cheng Zhang
INFN and Dipartimento di Fisica, Università di Roma, Piazzale A. Moro, 00185 Roma, Italy
Recent experiments of wetting immiscible displacement in porous media and bacteria colony growth are considered as realizations of the Eden interfaces. I propose an explanation of the discrepancy in the scaling behavior between the experiments and the theory. Due to an instability inherent in the growth processes, the presence of unbounded non-Gaussian noise can violate the naive scaling universality.
0570L - Nonequilibrium and irreversible thermodynamics.
0540 - Fluctuation phenomena, random processes, noise, and Brownian motion.
8717 - Cellular structure and processes.
cellular biophysics -- interface phenomena -- noise -- stochastic processes