2009/06/30 by Pablo G. Cámara, Pablo G. Camara, Fernando Marchesano · 1 citation
Physics and Astronomy · #Ansatz #Black Holes and Theoretical Physics #Brane #Brane cosmology #Cosmology and Gravitation Theories #Mathematical physics #Noncommutative and Quantum Gravity Theories #Physics #Quantum electrodynamics #String (physics) #String theory #Supergravity #Supersymmetry #Theoretical physics #Warp drive #hep-th
paper · pdf · doi:10.1088/1126-6708/2009/10/017
89 pages, 4 figures. v3: more typos corrected, version published in JHEP
arxiv created 2009/09/17 · openalex publication_date 2009/10/07 · arxiv updated 2015/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider compactifications of type I supergravity on manifolds with SU(3) structure, in the presence of RR fluxes and magnetized D9-branes, and analyze the generalized Dirac and Laplace-Beltrami operators associated to the D9-brane worldvolume fields. These compactifications are T-dual to standard type IIB toroidal orientifolds with NSNS and RR 3-form fluxes and D3/D7 branes. By using techniques of representation theory and harmonic analysis, the spectrum of open string wavefunctions can be computed for Lie groups and their quotients, as we illustrate with explicit twisted tori examples. We find a correspondence between irreducible unitary representations of the Kaloper-Myers algebra and families of Kaluza-Klein excitations. We perform the computation of 2- and 3-point couplings for matter fields in the above flux compactifications, and compare our results with those of 4d effective supergravity.