{ "id": "cond-mat/0607257", "version": "v1", "published": "2006-07-11T02:23:08.000Z", "updated": "2006-07-11T02:23:08.000Z", "title": "Density of Yang-Lee zeros for the Ising ferromagnet", "authors": [ "Seung-Yeon Kim" ], "comment": "to appear in Physical Review E", "journal": "Physical Review E 74 (2006) 011119", "doi": "10.1103/PhysRevE.74.011119", "categories": [ "cond-mat.stat-mech" ], "abstract": "The densities of Yang-Lee zeros for the Ising ferromagnet on the $L\\times L$ square lattice are evaluated from the exact grand partition functions ($L=3\\sim16$). The properties of the density of Yang-Lee zeros are discussed as a function of temperature $T$ and system size $L$. The three different classes of phase transitions for the Ising ferromagnet, first-order phase transition, second-order phase transition, and Yang-Lee edge singularity, are clearly distinguished by estimating the magnetic scaling exponent $y_h$ from the densities of zeros for finite-size systems. The divergence of the density of zeros at Yang-Lee edge in high temperatures (Yang-Lee edge singularity), which has been detected only by the series expansion until now for the square-lattice Ising ferromagnet, is obtained from the finite-size data. The identification of the orders of phase transitions in small systems is also discussed using the density of Yang-Lee zeros.", "revisions": [ { "version": "v1", "updated": "2006-07-11T02:23:08.000Z" } ], "analyses": { "keywords": [ "yang-lee zeros", "yang-lee edge singularity", "exact grand partition functions", "first-order phase transition", "second-order phase transition" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. E" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }