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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao https://doi.org/10.1...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
https://doi.org/10.1103/physre...
Article . 1986 . Peer-reviewed
License: APS Licenses for Journal Article Re-use
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Anomalous ballistic diffusion

Authors: , Havlin; , Bunde; , Stanley;

Anomalous ballistic diffusion

Abstract

We introduce a novel two-component random network. Unit resistors are placed at random along the bonds of a pure superconducting linear chain, with the distance $l$ between successive resistors being chosen from the distribution $P(l)\ensuremath{\sim}{l}^{\ensuremath{-}(\ensuremath{\alpha}+1)}$ where $\ensuremath{\alpha}g0$ is a tunable parameter. We study the transport exponents ${d}_{w}$ and $\stackrel{\ifmmode \tilde{}\else \~{}\fi{}}{\ensuremath{\zeta}}$ defined by $〈{x}^{2}〉{t}^{\frac{2}{{d}_{w}}}$ and $\ensuremath{\rho}\ensuremath{\sim}{L}^{\stackrel{\ifmmode \tilde{}\else \~{}\fi{}}{\ensuremath{\zeta}}}$, where $〈{x}^{2}〉$ is the mean-square displacement, $\ensuremath{\rho}$ the resistivity, and $L$ the system size. We find that for $\ensuremath{\alpha}\ensuremath{\ge}1$ both ${d}_{w}$ and $\stackrel{\ifmmode \tilde{}\else \~{}\fi{}}{\ensuremath{\zeta}}$ stick at their value for a nonzero concentration of resistors. For $\ensuremath{\alpha}l1$ they vary continuously with $\ensuremath{\alpha}: {d}_{w}=2\ensuremath{\alpha}$ and $\stackrel{\ifmmode \tilde{}\else \~{}\fi{}}{\ensuremath{\zeta}}=\ensuremath{\alpha}$. In the presence of a bias field, we find ${d}_{w}=\ensuremath{\alpha}$. This is the first exactly soluble model displaying "anomalous ballistic diffusion," which we interpret physically in terms of a L\'evy-flight-type random walk on a linear chain lattice.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
13
Average
Top 10%
Top 10%
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