Integral group actions on symmetric spaces and discrete duality symmetries of supergravity theories

Lisa Carbone, Scott H. Murray, Hisham Sati

    Research output: Contribution to journalArticle

    Abstract

    For G = G(R), a split, simply connected, semisimple Lie group of rank n and K the maximal compact subgroup of G, we give a method for computing Iwasawa coordinates of K\G using the Chevalley generators and the Steinberg presentation. When K\G is a scalar coset for a supergravity theory in dimensions ≥3, we determine the action of the integral form G(Z) on K\G. We give explicit results for the action of the discrete U-duality groups SL2(Z) and E7(Z) on the scalar cosets SO(2)\SL2(R) and [SU(8)/{± Id}]\E7(+7)(R) for type IIB supergravity in ten dimensions and 11-dimensional supergravity reduced to D = 4 dimensions, respectively. For the former, we use this to determine the discrete U-duality transformations on the scalar sector in the Borel gauge and we describe the discrete symmetries of the dyonic charge lattice. We determine the spectrum-generating symmetry group for fundamental BPS solitons of type IIB supergravity in D = 10 dimensions at the classical level and we propose an analog of this symmetry at the quantum level. We indicate how our methods can be used to study the orbits of discrete U-duality groups in general.

    Original languageEnglish (US)
    Article number103501
    JournalJournal of Mathematical Physics
    Volume56
    Issue number10
    DOIs
    StatePublished - Jan 1 2015

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    Supergravity
    Group Action
    Symmetric Spaces
    supergravity
    Duality
    Symmetry
    Coset
    Scalar
    symmetry
    scalars
    Semisimple Lie Group
    Integral form
    subgroups
    Symmetry Group
    Solitons
    Gauge
    Sector
    sectors
    generators
    solitary waves

    ASJC Scopus subject areas

    • Statistical and Nonlinear Physics
    • Mathematical Physics

    Cite this

    Integral group actions on symmetric spaces and discrete duality symmetries of supergravity theories. / Carbone, Lisa; Murray, Scott H.; Sati, Hisham.

    In: Journal of Mathematical Physics, Vol. 56, No. 10, 103501, 01.01.2015.

    Research output: Contribution to journalArticle

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