Instantons, finite N=2 Sp(N) theories and the AdS / CFT correspondence

Aug, 1999
17 pages
Published in:
  • JHEP 11 (1999) 012
e-Print:

Citations per year

19992003200720112014210
Abstract:
We examine ADHM multi-instantons in the conformal N=2 supersymmetric Sp(N) gauge theory with one anti-symmetric tensor and four fundamental hypermultiplets. We argue that the ADHM construction and measure can also be deduced from purely field theoretic considerations and also from the dynamics of D-instantons in the presence of D3-branes, D7-branes and an orientifold O7-plane. The measure then admits a large-N saddle-point approximation where the D3-branes disappear but the background is changed to AdS_5 x S^5/Z_2, as expected on the basis of the AdS/CFT correspondence. The large-N measure displays the fractionation of D-instantons at the singularity S^3 in S^5/Z_2 and is described for instanton number k by a certain O(k) matrix model.
  • gauge field theory: Sp(N)
  • field theory: tensor
  • field theory: anti-de Sitter
  • field theory: conformal
  • field theory: finite
  • instanton
  • moduli space
  • fermion: determinant
  • path integral: measure