{ "id": "1208.1060", "version": "v2", "published": "2012-08-05T22:45:17.000Z", "updated": "2012-11-23T01:41:56.000Z", "title": "Comment on `Series expansions from the corner transfer matrix renormalization group method: the hard-squares model'", "authors": [ "Iwan Jensen" ], "comment": "5 pages, 1 figure, IoP macros. Expanded second and final version", "journal": "J. Phys. A 45 508001 (2012)", "categories": [ "cond-mat.stat-mech", "math-ph", "math.MP" ], "abstract": "Earlier this year Chan extended the low-density series for the hard-squares partition function $\\kappa(z)$ to 92 terms. Here we analyse this extended series focusing on the behaviour at the dominant singularity $z_d$ which lies on on the negative fugacity axis. We find that the series has a confluent singularity of order 2 at $z_d$ with exponents $\\theta=0.83333(2)$ and $\\theta'= 1.6676(3)$. We thus confirm that the exponent $\\theta$ has the exact value $\\frac56$ as observed by Dhar.", "revisions": [ { "version": "v2", "updated": "2012-11-23T01:41:56.000Z" } ], "analyses": { "keywords": [ "transfer matrix renormalization group method", "corner transfer matrix renormalization group", "series expansions", "hard-squares model" ], "tags": [ "journal article" ], "publication": { "doi": "10.1088/1751-8113/45/50/508001", "journal": "Journal of Physics A Mathematical General", "year": 2012, "month": "Dec", "volume": 45, "number": 50, "pages": 508001 }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012JPhA...45X8001J" } } }