{ "id": "1708.03270", "version": "v1", "published": "2017-08-10T15:45:29.000Z", "updated": "2017-08-10T15:45:29.000Z", "title": "Self-trapping self-repelling random walks", "authors": [ "Peter Grassberger" ], "comment": "5 pages main paper + 5 pages supplementary material", "categories": [ "cond-mat.stat-mech" ], "abstract": "Although the title seems self-contradictory, it does not contain a misprint. The model we study is a seemingly minor modification of the \"true self-avoiding walk\" (TSAW) model of Amit, Parisi, and Peliti in two dimensions. The walks in it are self-repelling up to a characteristic time $T^*$ (which depends on various parameters), but spontaneously (i.e., without changing any control parameter) become self-trapping after that. For free walks, $T^*$ is astronomically large, but on finite lattices the transition is easily observable. In the self-trapped regime, walks are subdiffusive and intermittent, spending longer and longer times in small areas until they escape and move rapidly to a new area. In spite of this, these walks are extremely efficient in covering finite lattices, as measured by average cover times.", "revisions": [ { "version": "v1", "updated": "2017-08-10T15:45:29.000Z" } ], "analyses": { "keywords": [ "self-trapping self-repelling random walks", "finite lattices", "average cover times", "small areas", "seemingly minor modification" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }