A note on ${\cal N}\ge 6$ Superconformal Quantum Field Theories in three dimensions

Details A note on ${\cal N}\ge 6$ Superconformal Quantum Field Theories in three dimensions A note on ${\cal N}\ge 6$ Superconformal Quantum Field Theories in three dimensions

2011-08-20

arxiv.org/abs/1108.4081v1

Physics

High Energy Physics

High Energy Physics - Theory

7 pages

Scientific paper

Based on the structure of the three-dimensional superconformal algebra we show that every irreducible ${\mathcal N}=6$ three-dimensional superconformal theory containes exactly one conserved U(1)-symmetry current in the stress tensor supermultiplet and that superconformal symmetry of every ${\mathcal N}=7$ superconformal theory is in fact enhanced to ${\mathcal N}=8$. Moreover, an irreducible ${\cal N}=8$ superconformal theory does not have any global symmetries. The first observation explains why all known examples of ${\mathcal N}=6$ superconformal theories have a global abelian symmetry.

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