{ "id": "cond-mat/0608341", "version": "v1", "published": "2006-08-15T22:18:59.000Z", "updated": "2006-08-15T22:18:59.000Z", "title": "Response of Complex Systems to Complex Perturbations: Complexity Matching", "authors": [ "Paolo Allegrini", "Mauro Bologna", "Paolo Grigolino", "Mirko Lukovic" ], "comment": "4 pages, 3 figures, submitted to prl", "categories": [ "cond-mat.stat-mech" ], "abstract": "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 $1/t^{\\mu_P-\\mu_S}$.", "revisions": [ { "version": "v1", "updated": "2006-08-15T22:18:59.000Z" } ], "analyses": { "keywords": [ "complex systems", "complexity matching", "complex perturbations", "complexity index", "non-poisson renewal process" ], "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006cond.mat..8341A" } } }