Diffusive geodesics wandering in networks of rigid chains
Abstract
We introduce an ensemble of spatial networks built from the junctions of hindered-rotation chains, incorporating directional correlations between bonds, an aspect ignored in the standard network modeling paradigm. The emergent random networks support geodesics with a wandering exponent , and a travel-time fluctuation exponent , consistent with the KPZ relation, yet violating the bound~ predicted in the Poissonian framework. Transverse deviations follow the Kolmogorov distribution, indicating similarities between Brownian bridge excursions and geodesics in a random medium with correlated edges orientations. These results reveal a new universality class of Euclidean first-passage percolation, where local orientational memory reshapes transport properties and challenges existing bounds for random spatial networks.
Cite
@article{arxiv.2512.04682,
title = {Diffusive geodesics wandering in networks of rigid chains},
author = {Ulysse Marquis},
journal= {arXiv preprint arXiv:2512.04682},
year = {2025}
}
Comments
19 pages (main text + appendix), respectively 6 and 11 figures, accepted at Phys. Rev. E