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28.11.2023 (Tuesday)

On a geometrisation of generalised symmetries

Exceptional Seminar Andrea Ferrari (Edinburg and DESY)

at:
14:00 QMUL
room GO Jones 610
abstract:

There has recently been a lot of activity in the field of generalised symmetries. In the context of supersymmetric gauge theories with interesting moduli spaces of vacua, such as 3d N=4 theories, global symmetries may enjoy a geometric interpretation: they act as isometries of the moduli space. In this talk I will informally put forward the idea that by enhancing the notion of moduli space one can in a similar fashion geometrise generalised symmetries. I will focus on simple 3d N=4 abelian example and talk about various things including what I'll call 0- and 1-form resolutions as well as automorphism 2-groups.