Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2010-10-16
Physical Review E 83, 031136 (2011)
Physics
Condensed Matter
Statistical Mechanics
10 pages, 2 figures
Scientific paper
10.1103/PhysRevE.83.031136
Distributed order fractional Langevin-like equations are introduced and applied to describe anomalous diffusion without unique diffusion or scaling exponent. It is shown that these fractional Langevin equations of distributed order can be used to model the kinetics of retarding subdiffusion whose scaling exponent decreases with time, and the strongly anomalous ultraslow diffusion with mean square displacement which varies asymptoically as a power of logarithm of time.
Eab Chai Hok
Lim Chu S.
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