{ "id": "1208.6121", "version": "v2", "published": "2012-08-30T09:53:19.000Z", "updated": "2012-11-11T00:59:06.000Z", "title": "Stretched exponentials and tensionless glass in the plaquette Ising model", "authors": [ "Adam Lipowski" ], "comment": "extended version, Phys.Rev. E (accepted)", "journal": "Phys.Rev. E 86, 051129 (2012)", "categories": [ "cond-mat.stat-mech" ], "abstract": "Using Monte Carlo simulations we show that the autocorrelation function $C(t)$ in the d=3 Ising model with a plaquette interaction has a stretched-exponential decay in a supercooled liquid phase. Such a decay characterizes also some ground-state probability distributions obtained from the numerically exact counting of up to 10^450 configurations. A related model with a strongly degenerate ground state but lacking glassy features does not exhibit such a decay. Althoug the stretched exponential decay of C(t) in the three-dimensional supercooled liquid is inconsistent with the droplet model, its modification that considers tensionless droplets might explain such a decay. An indication that tensionless droplets might play some role comes from the analysis of low-temperature domains that compose the glassy state. It shows that the energy of a domain of size l scales as l^1.15, hence these domains are indeed tensionless .", "revisions": [ { "version": "v2", "updated": "2012-11-11T00:59:06.000Z" } ], "analyses": { "subjects": [ "05.20.Jj" ], "keywords": [ "plaquette ising model", "stretched exponential", "tensionless glass", "tensionless droplets", "monte carlo simulations" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review E", "doi": "10.1103/PhysRevE.86.051129", "year": 2012, "month": "Nov", "volume": 86, "number": 5, "pages": "051129" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012PhRvE..86e1129L" } } }