Journal
PHYSICAL REVIEW E
Volume 82, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.82.011101
Keywords
-
Categories
Funding
- Ente Cassa di Risparmio
- European Network of Excellence
- MIUR PRIN
Ask authors/readers for more resources
Transport in random media is known to be affected by quenched disorder. From the point of view of random walks, quenching induces correlations between steps that may alter the dynamical properties of the medium. This paper is intended to provide more insight into the role of quenched disorder on superdiffusive transport in two-dimensional random media. The systems under consideration are disordered materials called Levy glasses that exhibit large spatial fluctuations in the density of scattering elements. We show that in an ideal Levy glass the influence of quenching can be neglected, in the sense that transport follows to very good approximation that of a standard Levy walk. We also show that, by changing sample parameters, quenching effects can be increased intentionally, thereby making it possible to investigate systematically diverse regimes of transport. In particular, we find that strong quenching induces local trapping effects which slow down superdiffusion and lead to a transient subdiffusivelike transport regime close to the truncation time of the system.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available