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تسجيل مستخدم جديدTopological terms and anomaly matching in effective field theories on $mathbb{R}^3times S^1$: I. Abelian symmetries and intermediate scales
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We explicitly calculate the topological terms that arise in IR effective field theories for $SU(N)$ gauge theories on $mathbb{R}^3 times S^1$ by integrating out all but the lightest modes. We then show how these terms match all global-symmetry t Hooft anomalies of the UV description. We limit our discussion to theories with abelian 0-form symmetries, namely those with one flavour of adjoint Weyl fermion and one or zero flavours of Dirac fermions. While anomaly matching holds as required, it takes a different form than previously thought. For example, cubic- and mixed-$U(1)$ anomalies are matched by local background-field-dependent topological terms (background TQFTs) instead of chiral-lagrangian Wess-Zumino terms. We also describe the coupling of 0-form and 1-form symmetry backgrounds in the magnetic dual of super-Yang-Mills theory in a novel way, valid throughout the RG flow and consistent with the monopole-instanton t Hooft vertices. We use it to discuss the matching of the mixed chiral-center anomaly in the magnetic dual.
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