Dynamic Scaling of Non-Euclidean Interfaces

Details Dynamic Scaling of Non-Euclidean Interfaces Dynamic Scaling of Non-Euclidean Interfaces

2008-04-11

arxiv.org/abs/0804.1898v1

Phys. Rev. Lett. 100, 116101 (2008)

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevLett.100.116101

The dynamic scaling of curved interfaces presents features that are strikingly different from those of the planar ones. Spherical surfaces above one dimension are flat because the noise is irrelevant in such cases. Kinetic roughening is thus a one-dimensional phenomenon characterized by a marginal logarithmic amplitude of the fluctuations. Models characterized by a planar dynamical exponent $z>1$, which include the most common stochastic growth equations, suffer a loss of correlation along the interface, and their dynamics reduce to that of the radial random deposition model in the long time limit. The consequences in several applications are discussed, and we conclude that it is necessary to reexamine some experimental results in which standard scaling analysis was applied.

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