SELF-ORGANIZATION IN NONADDITIVE SYSTEMS WITH EXTERNAL NOISE


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Bagci G. B. , Tirnakli U.

INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, cilt.19, ss.4247-4252, 2009 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 19 Konu: 12
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1142/s021812740902533x
  • Dergi Adı: INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS
  • Sayfa Sayısı: ss.4247-4252

Özet

A nonadditive generalization of Klimontovich's S-theorem [Bagci, 2008] has recently been obtained by employing Tsallis entropy. This general version allows one to study physical systems whose stationary distributions are of the inverse power law in contrast to the original S-theorem, which only allows exponential stationary distributions. The nonadditive S-theorem has been applied to the modified Van der Pol oscillator with inverse power law stationary distribution. By using nonadditive S-theorem, it is shown that the entropy decreases as the system is driven out of equilibrium, indicating self-organization in the system. The allowed values of the nonadditivity index q are found to be confined to the regime (0.5, 1].