Title
Time Evolution of Relative Entropies for Anomalous Diffusion.
Abstract
The entropy production paradox for anomalous diffusion processes describes a phenomenon where one-parameter families of dynamical equations, falling between the diffusion and wave equations, have entropy production rates (Shannon, Tsallis or Renyi) that increase toward the wave equation limit unexpectedly. Moreover, also surprisingly, the entropy does not order the bridging regime between diffusion and waves at all. However, it has been found that relative entropies, with an appropriately chosen reference distribution, do. Relative entropies, thus, provide a physically sensible way of setting which process is "nearer" to pure diffusion than another, placing pure wave propagation, desirably, "furthest" from pure diffusion. We examine here the time behavior of the relative entropies under the evolution dynamics of the underlying one-parameter family of dynamical equations based on space-fractional derivatives.
Year
DOI
Venue
2013
10.3390/e15082989
ENTROPY
Keywords
Field
DocType
space-fractional diffusion equation,stable distribution,Kullback-Leibler entropy,Tsallis relative entropy
Statistical physics,Mathematical optimization,Wave propagation,Mathematical analysis,Entropy production,Tsallis entropy,Time evolution,Equations for a falling body,Wave equation,Min entropy,Mathematics,Anomalous diffusion
Journal
Volume
Issue
ISSN
15
8
1099-4300
Citations 
PageRank 
References 
9
0.99
8
Authors
4
Name
Order
Citations
PageRank
Janett Prehl1284.43
Frank Boldt2141.99
Christopher Essex3368.98
Karl Heinz Hoffmann44111.54