{ "id": "1312.1137", "version": "v1", "published": "2013-12-04T12:33:03.000Z", "updated": "2013-12-04T12:33:03.000Z", "title": "Extremal Aging For Trap Models", "authors": [ "Onur Gün" ], "categories": [ "math.PR" ], "abstract": "In the seminal work [5], Ben Arous and \\v{C}ern\\'y give a general characterization of aging for trap models in terms of $\\alpha$-stable subordinators with $\\alpha \\in (0,1)$. Some of the important examples that fall into this universality class are Random Hopping Time (RHT) dynamics of Random Energy Model (REM) and $p$-spin models observed on exponential time scales. In this paper, we explain a different aging mechanism in terms of {\\it extremal processes} that can be seen as the extension of $\\alpha$-stable aging to the case $\\alpha=0$. We apply this mechanism to the RHT dynamics of the REM for a wide range of temperature and time scales. The other examples that exhibit extremal aging include the Sherrington Kirkpatrick (SK) model and $p$-spin models [6, 9], and biased random walk on critical Galton-Watson trees conditioned to survive [11].", "revisions": [ { "version": "v1", "updated": "2013-12-04T12:33:03.000Z" } ], "analyses": { "subjects": [ "82C44", "82D30", "60G70" ], "keywords": [ "trap models", "extremal aging", "spin models", "random energy model", "exponential time scales" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1312.1137G" } } }