Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2006-08-15
Physics
Condensed Matter
Statistical Mechanics
4 pages, 3 figures, submitted to prl
Scientific paper
We argue that complex systems, defined as non-Poisson renewal process, with complexity index $\mu$, exchange information through complexity matching. We illustrate this property with detailed theoretical and numerical calculations describing a system with complexity index $\mu_{S}$ perturbed by a signal with complexity index $\mu_{P}$. We focus our attention on the case $1.5 \leq \mu_S \leq 2$ and $1 \leq \mu_{P} \leq 2$. We show that for $\mu_{S} \geq \mu_P$, the system S reproduces the perturbation, and the response intensity increases with increasing $\mu_P$. The maximum intensity is realized by the matching condition $\mu_P = \mu_S$. For $\mu_{P} > \mu_{S}$ the response intensity dies out as $1/t^{\mu_P-\mu_S}$.
Allegrini Paolo
Bologna Mauro
Grigolino Paolo
Lukovic Mirko
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