Nonextensive thermodynamic formalism for chaotic dynamical systems

Details Nonextensive thermodynamic formalism for chaotic dynamical systems Nonextensive thermodynamic formalism for chaotic dynamical systems

1999-09-15

arxiv.org/abs/cond-mat/9909218v1

Physics

Condensed Matter

Statistical Mechanics

11 pages, 5 figures e-mail: raman%phys@puniv.chd.nic.in

Scientific paper

10.1016/S0378-4371(00)00103-5

A nonextensive thermostatic approach to chaotic dynamical systems is developed by expressing generalized Tsallis distribution as escort distribution. We explicitly show the thermodynamic limit and also derive the Legendre Transform structure. As an application, bit variance is calculated for ergodic logistic map. Consistency of the formalism demands a relation between box size ($\epsilon$) and degree of nonextensivity, given as $(1-q)\sim -1/{\rm ln} \epsilon$. This relation is numerically verified for the case of bit variance as well as using basic definition of Tsallis entropy.

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