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| Formato: | Preprint |
| Publicado: |
2026
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| Acceso en línea: | https://arxiv.org/abs/2603.05374 |
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| _version_ | 1866910042561708032 |
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| author | Daniels, Ryan K. |
| author_facet | Daniels, Ryan K. |
| contents | This work extends the universal finite-size scaling framework for continuum percolation from two-dimensional (2D) to quasi-three-dimensional (Q3D) stick systems, in which sequentially deposited wires of finite diameter stack vertically on a flat substrate. Using Monte Carlo simulation, the percolation threshold is determined for isotropic Q3D stick systems as $N_c l^2 = 6.850923 \pm 0.00014$, approximately $21.5\%$ above the established 2D value of $5.6373$. The threshold is shown to be independent of the wire diameter-to-length ratio $d/l$, reflecting the scale invariance of the contact topology under sequential deposition. Simulation results indicate that, as with 2D networks, by introducing a nonuniversal metric factor, the spanning probability of Q3D stick percolation on square systems with free boundary conditions falls on the same universal scaling function as that for 2D continuum and lattice percolation. This provides substantiating evidence that Q3D stick percolation falls on the same universal scaling function as that for 2D stick percolation and lattice percolation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_05374 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Finite-size scaling in quasi-3D stick percolation Daniels, Ryan K. Statistical Mechanics Disordered Systems and Neural Networks This work extends the universal finite-size scaling framework for continuum percolation from two-dimensional (2D) to quasi-three-dimensional (Q3D) stick systems, in which sequentially deposited wires of finite diameter stack vertically on a flat substrate. Using Monte Carlo simulation, the percolation threshold is determined for isotropic Q3D stick systems as $N_c l^2 = 6.850923 \pm 0.00014$, approximately $21.5\%$ above the established 2D value of $5.6373$. The threshold is shown to be independent of the wire diameter-to-length ratio $d/l$, reflecting the scale invariance of the contact topology under sequential deposition. Simulation results indicate that, as with 2D networks, by introducing a nonuniversal metric factor, the spanning probability of Q3D stick percolation on square systems with free boundary conditions falls on the same universal scaling function as that for 2D continuum and lattice percolation. This provides substantiating evidence that Q3D stick percolation falls on the same universal scaling function as that for 2D stick percolation and lattice percolation. |
| title | Finite-size scaling in quasi-3D stick percolation |
| topic | Statistical Mechanics Disordered Systems and Neural Networks |
| url | https://arxiv.org/abs/2603.05374 |