Chris Blair (IFT, Madrid), Generalised U-duality

Tuesday 23 May 2023, 14:00 → 15:30 Europe/Stockholm

Albano 3: 6228 - Mega (22 seats) (Albano Building 3)

Supergravity inherits T- and U-duality symmetry from string and M-theory. These dualities can be used to map solutions with abelian isometries to other solutions with abelian isometries. There also exist "generalisations" of these dualities involving transformations between solutions with more complicated symmetries, or even without isometries. The most studied examples are generalised T-dualities (such as non-abelian and Poisson-Lie T-duality) which have been known for many years. Only recently, thanks in large part to the use of generalised geometry, has it been understood how to obtain similar generalisations of the U-duality symmetry of 11-dimensional supergravity. I will explain a particular realisation of this idea, loosely covering my papers 2006.12452, 2203.01838, 2205.13019 and 2210.07867