Volume 69, Number 4, February 2005
|Page(s)||503 - 509|
|Published online||14 January 2005|
Scale-free dynamics emerging from information transfer
Department of Physics, Seoul National University - Seoul 151-747, Korea
2 Korea Institute for Advanced Study - Seoul 130-722, Korea
3 Department of Molecular Science and Technology, Ajou University Suwon 442-749, Korea
4 Department of Physics, University of Ulsan - Ulsan 680-749, Korea
Accepted: 3 December 2004
The dynamics based on information transfer is proposed as an underlying mechanism for the scale-invariant dynamic critical behavior observed in a variety of systems. We apply the dynamics to the globally coupled Ising model, which is analytically tractable, and show that dynamic criticality is indeed attained. Such emergence of criticality is confirmed numerically in the two-dimensional Ising model as well as the globally coupled one and in a biological evolution model. Although criticality is precise only when information transfer is reversible, it may also be observed even in the irreversible case, during the practical time scale shorter than the relaxation time.
PACS: 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 05.65.+b – Self-organized systems / 89.75.Fb – Structures and organization in complex systems
© EDP Sciences, 2005
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