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Tsallis non-extensive statistics,intermittent turbulence,SOC and chaos in the solar plasma,Part one: Sunspot dynamics
Authors:G.P. Pavlos  L.P. Karakatsanis  M.N. Xenakis
Affiliation:1. Department of Electrical and Computer Engineering, Democritus University of Thrace, 67100 Xanthi, Greece;2. German Research School for Simulation Sciences, Aachen, Germany
Abstract:
In this study, the non-linear analysis of the sunspot index is embedded in the non-extensive statistical theory of Tsallis (1988, 2004, 2009) ,  and . The qq-triplet of Tsallis, as well as the correlation dimension and the Lyapunov exponent spectrum were estimated for the SVD components of the sunspot index timeseries. Also the multifractal scaling exponent spectrum f(a)f(a), the generalized Renyi dimension spectrum D(q)D(q) and the spectrum J(p)J(p) of the structure function exponents were estimated experimentally and theoretically by using the qq-entropy principle included in Tsallis non-extensive statistical theory, following Arimitsu and Arimitsu (2001, 2000)  and . Our analysis showed clearly the following: (a) a phase transition process in the solar dynamics from high dimensional non-Gaussian SOC state to a low dimensional non-Gaussian chaotic state, (b) strong intermittent solar turbulence and anomalous (multifractal) diffusion solar process, which is strengthened as the solar dynamics makes a phase transition to low dimensional chaos in accordance to Ruzmaikin, Zeleny and Milovanov’s studies (Zelenyi and Milovanov (1991) [21]); Milovanov and Zelenyi (1993) [22]; Ruzmakin et al. (1996) [26]) (c) faithful agreement of Tsallis non-equilibrium statistical theory with the experimental estimations of (i) non-Gaussian probability distribution function P(x)P(x), (ii) multifractal scaling exponent spectrum f(a)f(a) and generalized Renyi dimension spectrum DqDq, (iii) exponent spectrum J(p)J(p) of the structure functions estimated for the sunspot index and its underlying non equilibrium solar dynamics.
Keywords:Tsallis non-extensive statistics   Non-Gaussian solar process   Low dimensional chaos   Self organized criticality (SOC)   Non-equilibrium phase transition   Intermittent turbulence   Sunspot dynamics   Solar activity
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