Superconformal duality-invariant models and $\mathcal{N}=4$ SYM effective action

Abstract

We present $\mathcal{N}=2$ superconformal $\mathsf{U}(1)$ duality-invariant models for an Abelian vector multiplet coupled to conformal supergravity. In a Minkowski background, such a nonlinear theory is expected to describe (the planar part of) the low-energy effective action for the $\mathcal{N}=4$ $\mathsf{SU}(N)$ super-Yang-Mills (SYM) theory on its Coulomb branch where (i) the gauge group $\mathsf{SU}(N)$ is spontaneously broken to $\mathsf{SU}(N-1)\times \mathsf{U}(1)$; and (ii) the dynamics is captured by a single $\mathcal{N}=2$ vector multiplet associated with the $\mathsf{U}(1)$ factor of the unbroken group. Additionally, a local $\mathsf{U}(1)$ duality-invariant action generating the $\mathcal{N}=2$ super-Weyl anomaly is proposed. By providing a new derivation of the recently constructed $\mathsf{U}(1)$ duality-invariant $\mathcal{N}=1$ superconformal electrodynamics, we introduce its $\mathsf{SL}(2,\mathbb{R})$ duality-invariant coupling to the dilaton-axion multiplet.

29 pages; V2: comments and references added, 31 pages; V3: published version + typo in eq. (4.10) corrected; V4: typos in eq. (4.6) corrected and footnote 16 added

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• Stress Tensor Flows, Birefringence in Non-Linear Electrodynamics, and Supersymmetry
• Infinite Family of Integrable Sigma Models Using Auxiliary Fields
• Hamiltonian analysis of ModMax nonlinear electrodynamics in the first order formalism
• Quantization of the ModMax Oscillator
• ModMax Oscillators and Root-$T\overline{T}$-Like Flows in Supersymmetric Quantum Mechanics
• Flows in the Space of Interacting Chiral Boson Theories
• A supersymmetric nonlinear sigma model analogue of the ModMax theory
• Waves and strings in an interacting conformal chiral 2-form theory in six dimensions
• Weyl invariance, non-compact duality and conformal higher-derivative sigma models
• On Current-Squared Flows and ModMax Theories