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A New Universality for Random Sequential Deposition of Needles

N. Vandewalle·S. Galam·M. Kramer
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Abstract

Percolation and jamming phenomena are investigated for random sequential deposition of rectangular needles on $d=2$ square lattices. Associated thresholds $p_c^{perc}$ and $p_c^{jam}$ are determined for various needle sizes. Their ratios $p_c^{perc} / p_c^{jam}$ are found to be a constant $0.62 \pm 0.01$ for all sizes. In addition the ratio of jamming thresholds for respectively square blocks and needles is also found to be a constant $0.79 \pm 0.01$. These constants exhibit some universal connexion in the geometry of jamming and percolation for both anisotropic shapes (needles versus square lattices) and isotropic shapes (square blocks on square lattices). A universal empirical law is proposed for all three thresholds as a function of $a$.

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BibTeXRIS

N. Vandewalle, S. Galam, M. Kramer. 2000-04-17. A New Universality for Random Sequential Deposition of Needles. https://doi.org/10.1007/s100510051047

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