HET journal club: Florian Loebbert (NBIA) – Niels Bohr Institute - University of Copenhagen

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HET journal club: Florian Loebbert (NBIA)

Bilocal Operators in N=4 Super Yang-Mills Theory

The symmetries of N=4 SYM theory play a crucial role for the determination of its different kinds of observables, e.g. anomalous dimensions, scattering amplitudes, three-point functions. Typically Lie-algebra or integrable symmetries are realized similarly in these cases, namely as local operators acting on the external legs of a scattering amplitude or the fields in a gauge-invariant trace operator. I will give different examples for the appearence of bilocal symmetry generators being a composition of local symmetries. These take an important role in several contexts while the nature of their universal emergence seems yet to be understood.