Instantons in supersymmetric Yang-Mills and D instantons in IIB superstring theory

Jul, 1998
40 pages
Published in:
  • JHEP 08 (1998) 013
e-Print:
Report number:
  • ROM2F-98-25,
  • DAMTP-98-69

Citations per year

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Abstract:
The one-instanton contributions to various correlation functions of supercurrents in four-dimensional N=4 supersymmetric SU(2) Yang-Mills theory are evaluated to the lowest order in perturbation theory.Expressions of the same form are obtained from the leading effects of a single D-instanton extracted from the IIB superstring effective action around the AdS5*S5 background. This is in line with the suggested AdS/Yang-Mills correspondence. The relation between Yang--Mills instantons and D-instantons is further confirmed by the explicit form of the classical D-instanton solution in the AdS5*S5 background and its associated supermultiplet of zero modes. Speculations are made concerning instanton effects in the large-N_c limit of the SU(N_c) Yang-Mills theory.
  • gauge field theory: SU(2)
  • supersymmetry
  • string model
  • instanton
  • current: conformal
  • correlation function
  • space: anti-de Sitter
  • Kaluza-Klein model
  • supergravity
  • gauge field theory: SU(N)