{ "id": "cond-mat/0408399", "version": "v2", "published": "2004-08-18T14:48:40.000Z", "updated": "2005-09-30T11:58:21.000Z", "title": "Trading interactions for topology in scale-free networks", "authors": [ "C. V. Giuraniuc", "J. P. L. Hatchett", "J. O. Indekeu", "M. Leone", "I. Perez Castillo", "B. Van Schaeybroeck", "C. Vanderzande" ], "comment": "4 pages, 5 figures", "journal": "Physical Review Letters 95, 098701 (2005) (4pages),", "doi": "10.1103/PhysRevLett.95.098701", "categories": [ "cond-mat.dis-nn", "cond-mat.stat-mech" ], "abstract": "Scale-free networks with topology-dependent interactions are studied. It is shown that the universality classes of critical behavior, which conventionally depend only on topology, can also be explored by tuning the interactions. A mapping, $\\gamma' = (\\gamma - \\mu)/(1-\\mu)$, describes how a shift of the standard exponent $\\gamma$ of the degree distribution $P(q)$ can absorb the effect of degree-dependent pair interactions $J_{ij} \\propto (q_iq_j)^{-\\mu}$. Replica technique, cavity method and Monte Carlo simulation support the physical picture suggested by Landau theory for the critical exponents and by the Bethe-Peierls approximation for the critical temperature. The equivalence of topology and interaction holds for equilibrium and non-equilibrium systems, and is illustrated with interdisciplinary applications.", "revisions": [ { "version": "v2", "updated": "2005-09-30T11:58:21.000Z" } ], "analyses": { "keywords": [ "scale-free networks", "trading interactions", "monte carlo simulation support", "degree-dependent pair interactions", "cavity method" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }