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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