Speaker
Giacomo Maggiorotti
(University of Bologna)
Description
We investigate non-invertible symmetries in non-linear sigma models in terms of the self-dual momentum lattice. We first recast the well-known T-duality of the $c=1$ compact boson, which results in the exchange of D0- and D1-branes, in lattice terms. We then move to the toroidal case, which is characterised by a richer duality group and a larger spectrum of Dp-branes, analysing how the introduction of twisted sectors, required for modular invariance after gauging, leads to new Ishibashi states.
Primary author
Giacomo Maggiorotti
(University of Bologna)
