Superstatistics from a different perspective

F Sattin

Physica A: Statistical Mechanics and its Applications, 2004, vol. 338, issue 3, 437-444

Abstract: In this paper we elaborate on the recently proposed superstatistics formalism [C. Beck, E.G.D. Cohen, Physica A 322 (2003) 267], used to interpret unconventional statistics. Their interpretation is that unconventional statistics in dynamical systems arise as weighted averages of the ordinary statistics obeyed by these systems over a statistical distribution of background configurations due to fluctuations intrinsic to the background. In this paper we suggest that the same picture can arise because of the intrinsic dynamics of the system. The dynamics of the system and the background, hence, concur together to determine the overall final statistics: differently evolving systems embedded within the same background can yield different statistical distributions. Some simple examples are provided; among them a toy model able to yield a power-law distribution. Also, some recent independent results are quoted, that appear to support this viewpoint.

Keywords: Statistical physics; Superstatistics; Turbulence; Fluid mechanics (search for similar items in EconPapers)
Date: 2004
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:338:y:2004:i:3:p:437-444

DOI: 10.1016/j.physa.2004.02.015

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