{ "id": "1412.2172", "version": "v1", "published": "2014-12-05T22:24:42.000Z", "updated": "2014-12-05T22:24:42.000Z", "title": "Statistical distribution of the Wigner-Smith time-delay matrix for chaotic cavities", "authors": [ "Fabio Deelan Cunden" ], "comment": "5 pages, 1 table, 2 figures", "categories": [ "cond-mat.mes-hall", "cond-mat.stat-mech", "math-ph", "math.MP", "nlin.CD" ], "abstract": "We derive the joint distribution of the moments $\\mathrm{Tr}\\, Q^{\\kappa}$ ($\\kappa\\geq0$) of the Wigner-Smith matrix for a chaotic cavity supporting a large number of scattering channels $n$. This distribution turns out to be asymptotically Gaussian, and we compute explicitly averages and covariances. The results are in a compact form and have been verified numerically. The general methodology of proof and computations has a wide range of applications.", "revisions": [ { "version": "v1", "updated": "2014-12-05T22:24:42.000Z" } ], "analyses": { "subjects": [ "05.60.Gg", "02.50.Cw", "05.45.Mt" ], "keywords": [ "wigner-smith time-delay matrix", "statistical distribution", "joint distribution", "wigner-smith matrix", "large number" ], "publication": { "doi": "10.1103/PhysRevE.91.060102", "journal": "Physical Review E", "year": 2015, "month": "Jun", "volume": 91, "number": 6, "pages": "060102" }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015PhRvE..91f0102C" } } }