2012/06/18 by M. Billó, M. Frau, Francesco Fucito +8 · 3 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Gauge (firearms) #Gauge theory #Geography #Mathematical physics #Non-perturbative #Noncommutative and Quantum Gravity Theories #Physics #Quantum electrodynamics #Theoretical physics #hep-th
paper · pdf · doi:10.1007/jhep08(2012)166
42 pages. 3 figures, PDFLaTeX
arxiv created 2012/06/18 · openalex publication_date 2012/08/01 · arxiv updated 2015/06/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We derive the exact supergravity profile for the twisted scalar field emitted by a system of fractional D3 branes at a Z2 orbifold singularity supporting N=2 quiver gauge theories with unitary groups and bifundamental matter. At the perturbative level this twisted field is "dual" to the gauge coupling but it is corrected non-perturbatively by an infinite tower of fractional D-instantons. The explicit microscopic description allows to derive the gravity profile from disk amplitudes computing the emission rate of the twisted scalar field in terms of chiral correlators in the dual gauge theory. We compute these quantum correlators using multi-instanton localization techniques and/or Seiberg-Witten analysis. Finally, we discuss a non-perturbative relation between the twisted scalar and the effective coupling of the gauge theory for some simple choices of the brane set ups.