ITMP seminar "Current Algebra and Generalised Geometry"

Dear Colleagues,

We are pleased to announce that the next ITMP seminar will be held on Wednesday, June 24, at 18:00. The seminar will be arranged via Zoom.

Speaker: Dr. David Osten, Ludwig Maximilian University/Max-Planck-Institute for Physics, Munich

Topic: Current Algebra and Generalised Geometry

Abstract: The first part of the talk will be a review of T-duality and generalised geometry in string theory. Generalised geometry is a generalisation of Riemannian geometry that captures certain 'non-geometric' backgrounds which are nevertheless well-defined in string theory. A convenient characterisation of such backgrounds is given in terms of the so-called generalised fluxes. In the second part of the talk I want to discuss the meaning of these generalised fluxes in the worldsheet theory. There, they describe a deformation of the canonical Poisson structure -- namely the current algebra. Besides applications to magnetic backgrounds and integrable sigma models which motivated this work, the virtue of the deformed current algebra lies in the fact that it gives clear-cut routes to non-commutative and non-associative interpretations of the generalised flux backgrounds, to generalisations of T-duality and to generalisations to M-theory.

If you want to join the seminar please register here before 15:00, June 23.

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