Self-organized critical directed percolation
نویسندگان
چکیده
منابع مشابه
Self Organized Critical Dynamics of a Directed Bond Percolation Model
We study roughening interfaces with a constant slope that become self organized critical by a rule that is similar to that of invasion percolation. The transient and critical dynamical exponents show Galilean invariance. The activity along the interface exhibits nontrivial power law correlations in both space and time. The probability distribution of the activity pattern follows an algebraic re...
متن کاملDirected self-organized critical patterns emerging from fractional Brownian paths
We discuss a family of clusters C corresponding to the region whose boundary is formed by a fractional Brownian path y(i) and by the moving average function ỹn(i) ≡ 1 n ∑n−1 k=0 y(i − k). Our model generates fractal directed patterns showing spatio-temporal complexity, and we demonstrate that the cluster area, length and duration exhibit the characteristic scaling behavior of SOC clusters. The ...
متن کاملA Self-Organized Critical Universe
A model of the universe as a self-organized critical system is considered. The universe evolves to a state independently of the initial conditions at the edge of chaos. The critical state is an attractor of the dynamics. Random metric fluctuations exhibit noise without any characteristic length scales, and the power spectrum for the fluctuations has a self-similar fractal behavior. In the early...
متن کاملSelf-organized critical neural networks.
A mechanism for self-organization of the degree of connectivity in model neural networks is studied. Network connectivity is regulated locally on the basis of an order parameter of the global dynamics, which is estimated from an observable at the single synapse level. This principle is studied in a two-dimensional neural network with randomly wired asymmetric weights. In this class of networks,...
متن کاملSelf-organized critical and synchronized states in a nonequilibrium percolation model.
We introduce a nonequilibrium percolation model which shows a selforganized critical (SOC) state and several periodic states. In the SOC state, the correlation length diverges slower than the system size, and the corresponding exponent depends non universally on the parameter of the model. The periodic states contain an infinite cluster covering only part of the system. PACS numbers: 05.40.+j, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 1996
ISSN: 0378-4371
DOI: 10.1016/0378-4371(95)00346-0