SU(2) Yang-Mills theory with extended supersymmetry in a background magnetic field

D. G C McKeon, I. Sachs, Igor Shovkovy

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The vacuum structure of N = 2 (and N = 4) supersymmetric Yang-Mills theory is analyzed in detail by considering the effective potential for constant background scalar-magnetic fields within different approximations. We compare the one-loop approximation with or without instanton improved effective coupling with the one-loop result in the dual description. For N = 2 we find that non-perturbative monopole degrees of freedom remove the non-trivial minima present in the (improved) one-loop potential in the strong-coupling regime. The combination of Yang-Mills theory and the dual description leads to a self-consistent effective potential over the full range of background fields.

Original languageEnglish (US)
Pages (from-to)1-11
Number of pages11
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number10
StatePublished - May 15 1999
Externally publishedYes

ASJC Scopus subject areas

  • Mathematical Physics
  • General Physics and Astronomy
  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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