{ "id": "1810.07826", "version": "v1", "published": "2018-10-17T22:46:11.000Z", "updated": "2018-10-17T22:46:11.000Z", "title": "Dynamics around the Site Percolation Threshold on High-Dimensional Hypercubic Lattices", "authors": [ "Giulio Biroli", "Patrick Charbonneau", "Yi Hu" ], "comment": "12 pages, 6 figures", "categories": [ "cond-mat.stat-mech" ], "abstract": "Recent advances on the glass problem motivate reexamining classical models of percolation. Here, we consider the displacement of an ant in a labyrinth near the percolation threshold on cubic lattices both below and above the upper critical dimension of simple percolation, d_u=6. Using theory and simulations, we consider the scaling regime part, and obtain that both caging and subdiffusion scale logarithmically for d >= d_u. The theoretical derivation considers Bethe lattices with generalized connectivity and a random graph model, and employs a scaling analysis to confirm that logarithmic scalings should persist in the infinite dimension limit. The computational validation employs accelerated random walk simulations with a transfer-matrix description of diffusion to evaluate directly the dynamical critical exponents below d_u as well as their logarithmic scaling above d_u. Our numerical results improve various earlier estimates and are fully consistent with our theoretical predictions.", "revisions": [ { "version": "v1", "updated": "2018-10-17T22:46:11.000Z" } ], "analyses": { "keywords": [ "high-dimensional hypercubic lattices", "site percolation threshold", "accelerated random walk simulations", "validation employs accelerated random", "employs accelerated random walk" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }