2006/03/31 by Romuald A. Janik · 20 citations
Mathematics · Physics and Astronomy · #Advanced Topics in Algebra #Algebraic number #Algebraic structures and combinatorial models #Black Holes and Theoretical Physics #Combinatorics #Geometry #Mathematical analysis #Mathematical physics #Mathematics #Matrix (chemical analysis) #Physics #Scalar (mathematics) #Superstring theory #Supersymmetry #hep-th #math-ph #math.MP #math.QA
paper · pdf · doi:10.1103/physrevd.73.086006
published as Phys.Rev.D73:086006,2006 · 27 pages, no figures; v2: sign typo fixed in (24), everything else unchanged
openalex publication_date 2006/04/18 · arxiv created 2007/01/11 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
An S matrix satisfying the Yang-Baxter equation with symmetries relevant to the AdS5\ifmmode×\else\texttimes\fiS5 superstring recently has been determined up to an unknown scalar factor. Such scalar factors are typically fixed using crossing relations; however, due to the lack of conventional relativistic invariance, in this case its determination remained an open problem. In this paper we propose an algebraic way to implement crossing relations for the AdS5\ifmmode×\else\texttimes\fiS5 superstring worldsheet S matrix. We base our construction on a Hopf-algebraic formulation of crossing in terms of the antipode and introduce generalized rapidities living on the universal cover of the parameter space which is constructed through an auxillary, coupling-constant dependent, elliptic curve. We determine the crossing transformation and write functional equations for the scalar factor of the S matrix in the generalized rapidity plane.