{ "id": "cond-mat/0202493", "version": "v1", "published": "2002-02-27T00:53:54.000Z", "updated": "2002-02-27T00:53:54.000Z", "title": "Odd-even binding effect from random two-body interactions", "authors": [ "Thomas Papenbrock", "Lev Kaplan", "George F. Bertsch" ], "comment": "8 pages, 4 eps figures", "journal": "Phys.Rev. B65 (2002) 235120", "doi": "10.1103/PhysRevB.65.235120", "categories": [ "cond-mat.mes-hall", "nlin.CD", "nucl-th" ], "abstract": "Systematic odd-even binding energy differences in finite metallic particles are usually attributed to mean-field orbital energy effects or to a coherent pairing interaction. We show analytically and numerically that a purely random two-body Hamiltonian can also give rise to an odd-even staggering. We explore the characteristics of this chaotic mechanism and discuss distinguishing features with respect to the other causes of staggering. In particular, randomness-induced staggering is found to be a smooth function of particle number, and the mechanism is seen to be largely insensitive to the presence of a magnetic field.", "revisions": [ { "version": "v1", "updated": "2002-02-27T00:53:54.000Z" } ], "analyses": { "keywords": [ "random two-body interactions", "odd-even binding effect", "mean-field orbital energy effects", "systematic odd-even binding energy differences", "purely random two-body hamiltonian" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "inspire": 583483 } } }