Breakdown of Exponential Sensitivity to Initial Conditions: Role of the Range of Interactions
- 15 June 1998
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 80 (24), 5313-5316
- https://doi.org/10.1103/physrevlett.80.5313
Abstract
Within a microcanonical scenario we numerically study an -sized linear chain classical inertial model including ferromagnetic couplings which decrease with distance as ( ). We show that for (thermodynamic limit): (i) The energy per particle scales like ; (ii) The properly scaled maximum Lyapunov exponent tends, for above a threshold, to zero for and only for . These results are analogous to those observed in low-dimensional and in self-organized critical dissipative systems. This entire picture suggests a connection with the nonextensive thermostatistics recently introduced by one of us.
Keywords
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