Non-Abelian strong-weak coupling duality in (string-derived) N=4 supersymmetric Yang-Mills theories

Luciano Girardello, Amit Giveon, Massimo Porrati, Alberto Zaffaroni

    Research output: Contribution to journalArticle

    Abstract

    We study strong-weak coupling duality (S-duality) in N = 4 supersymmetric non-Abelian Yang-Mills theories. These theories arise naturally as the low-energy limit of four-dimensional toroidal compactifications of the heterotic string. Firstly, we define the free energy in the presence of electric and magnetic fluxes using 't Hooft's prescription, i.e. through functional integrals at finite volume in the presence of twisted boundary conditions. Then, we find those free energies in two limiting cases: small and large coupling constant. Finally, we extend the free energies to all values of the coupling constant (and the theta angle) by presenting a fully S-duality invariant ansatz. This ansatz obeys all relevant consistency conditions; in particular, it obeys 't Hooft duality equations and Witten's magnetic-electric transmutation. The existence of an S-duality invariant, consistent definition of free energies supports the claim made in the literature that S-duality is a duality symmetry of N = 4 SUSY Yang-Mills. Our ansatz also suggests that N = 4, irrespective of whether partially broken or not, is in a self-dual phase: no phase transitions occur between the strong and weak coupling regimes.

    Original languageEnglish (US)
    Pages (from-to)331-338
    Number of pages8
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume334
    Issue number3-4
    DOIs
    StatePublished - Aug 18 1994

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    Yang-Mills theory
    strings
    free energy
    transmutation
    magnetic flux
    boundary conditions
    symmetry

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Non-Abelian strong-weak coupling duality in (string-derived) N=4 supersymmetric Yang-Mills theories. / Girardello, Luciano; Giveon, Amit; Porrati, Massimo; Zaffaroni, Alberto.

    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 334, No. 3-4, 18.08.1994, p. 331-338.

    Research output: Contribution to journalArticle

    Girardello, Luciano ; Giveon, Amit ; Porrati, Massimo ; Zaffaroni, Alberto. / Non-Abelian strong-weak coupling duality in (string-derived) N=4 supersymmetric Yang-Mills theories. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 1994 ; Vol. 334, No. 3-4. pp. 331-338.
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