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arXiv · 1711.04676

Scaling of sub-ballistic 1D Random Walks among biased Random Conductances

Quentin Berger·Michele Salvi
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Abstract

We consider two models of one-dimensional random walks among biased i.i.d. random conductances: the first is the classical exponential tilt of the conductances, while the second comes from the effect of adding an external field to a random walk on a point process (the bias depending on the distance between points). We study the case when the walk is transient to the right but sub-ballistic, and identify the correct scaling of the random walk: we find $α\in[0,1]$ such that $\log X_n / \log n \to α$. Interestingly, $α$ does not depend on the intensity of the bias in the first case, but it does in the second case.

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Quentin Berger, Michele Salvi. 2017-11-13. Scaling of sub-ballistic 1D Random Walks among biased Random Conductances. https://arxiv.org/abs/1711.04676

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