{ "id": "1109.5109", "version": "v3", "published": "2011-09-23T15:21:04.000Z", "updated": "2013-07-26T11:10:37.000Z", "title": "Surprising Pfaffian factorizations in Random Matrix Theory with Dyson index $β=2$", "authors": [ "Mario Kieburg" ], "comment": "23 pages; PACS: 02.10.Yn, 02.50.-r, 05.90.+m, 12.38.-t", "journal": "J. Phys. A: Math. Theor. 45 095205 (2012)", "doi": "10.1088/1751-8113/45/9/095205", "categories": [ "math-ph", "hep-lat", "hep-th", "math.MP" ], "abstract": "In the past decades, determinants and Pfaffians were found for eigenvalue correlations of various random matrix ensembles. These structures simplify the average over a large number of ratios of characteristic polynomials to integrations over one and two characteristic polynomials only. Up to now it was thought that determinants occur for ensembles with Dyson index $\\beta=2$ whereas Pfaffians only for ensembles with $\\beta=1,4$. We derive a non-trivial Pfaffian determinant for $\\beta=2$ random matrix ensembles which is similar to the one for $\\beta=1,4$. Thus, it unveils a hidden universality of this structure. We also give a general relation between the orthogonal polynomials related to the determinantal structure and the skew-orthogonal polynomials corresponding to the Pfaffian. As a particular example we consider the chiral unitary ensembles in great detail.", "revisions": [ { "version": "v3", "updated": "2013-07-26T11:10:37.000Z" } ], "analyses": { "subjects": [ "15B52", "33C45", "42C05", "60B20", "05.90.+m", "02.10.Yn", "12.38.-t", "02.50.-r" ], "keywords": [ "random matrix theory", "surprising pfaffian factorizations", "dyson index", "random matrix ensembles", "characteristic polynomials" ], "tags": [ "journal article" ], "publication": { "journal": "Journal of Physics A Mathematical General", "year": 2012, "month": "Mar", "volume": 45, "number": 9, "pages": "095205" }, "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable", "inspire": 928319, "adsabs": "2012JPhA...45i5205K" } } }