{ "id": "cond-mat/9709303", "version": "v1", "published": "1997-09-26T20:57:17.000Z", "updated": "1997-09-26T20:57:17.000Z", "title": "Critical behavior of the Ising model on a hierarchical lattice with aperiodic interactions", "authors": [ "S. T. R. Pinho", "T. A. S. Haddad", "S. R. Salinas" ], "comment": "9 pages, 1 figure, submitted to Physica A", "categories": [ "cond-mat.stat-mech", "cond-mat.dis-nn" ], "abstract": "We write exact renormalization-group recursion relations for nearest-neighbor ferromagnetic Ising models on Migdal-Kadanoff hierarchical lattices with a distribution of aperiodic exchange interactions according to a class of substitutional sequences. For small geometric fluctuations, the critical behavior is unchanged with respect to the uniform case. For large fluctuations, as in the case of the Rudin-Shapiro sequence, the uniform fixed point in the parameter space cannot be reached from any physical initial conditions. We derive a criterion to check the relevance of the geometric fluctuations.", "revisions": [ { "version": "v1", "updated": "1997-09-26T20:57:17.000Z" } ], "analyses": { "keywords": [ "hierarchical lattice", "critical behavior", "aperiodic interactions", "write exact renormalization-group recursion relations", "nearest-neighbor ferromagnetic ising models" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }