{ "id": "0910.4091", "version": "v2", "published": "2009-10-21T13:48:47.000Z", "updated": "2010-01-18T09:16:05.000Z", "title": "Sherrington-Kirkpatrick model near $T=T_c$: expanding around the Replica Symmetric Solution", "authors": [ "A. Crisanti", "C. De Dominicis" ], "comment": "18 pages, 3 figures", "journal": "J. Phys. A: Math. Theor. 43 (2010) 055002", "doi": "10.1088/1751-8113/43/5/055002", "categories": [ "cond-mat.dis-nn", "cond-mat.stat-mech" ], "abstract": "An expansion for the free energy functional of the Sherrington-Kirkpatrick (SK) model, around the Replica Symmetric SK solution $Q^{({\\rm RS})}_{ab} = \\delta_{ab} + q(1-\\delta_{ab})$ is investigated. In particular, when the expansion is truncated to fourth order in. $Q_{ab} - Q^{({\\rm RS})}_{ab}$. The Full Replica Symmetry Broken (FRSB) solution is explicitly found but it turns out to exist only in the range of temperature $0.549...\\leq T\\leq T_c=1$, not including T=0. On the other hand an expansion around the paramagnetic solution $Q^{({\\rm PM})}_{ab} = \\delta_{ab}$ up to fourth order yields a FRSB solution that exists in a limited temperature range $0.915...\\leq T \\leq T_c=1$.", "revisions": [ { "version": "v2", "updated": "2010-01-18T09:16:05.000Z" } ], "analyses": { "keywords": [ "replica symmetric solution", "sherrington-kirkpatrick model", "full replica symmetry broken", "replica symmetric sk solution", "fourth order yields" ], "tags": [ "journal article" ], "publication": { "journal": "Journal of Physics A Mathematical General", "year": 2010, "month": "Feb", "volume": 43, "number": 5, "pages": "055002" }, "note": { "typesetting": "TeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010JPhA...43e5002C" } } }