Dec 14 – 15, 2023
Centre for Particle Theory
Europe/London timezone

Courant Algebroid Relations and T-duality

Dec 15, 2023, 11:30 AM
Ph8 (Centre for Particle Theory)


Centre for Particle Theory

Long Talk (20 mins) String Theory


Thomas De Fraja (Heriot-Watt University)


We develop a new approach to T-duality based on Courant algebroid relations which subsumes the usual T-duality as well as its various generalisations. We introduce the relation associtated to Courant algebroid reduction, and describe how to transfer the information of generalised metrics through the reduction, via transverse generalised metrics and isometries. This is used to construct T-dual backgrounds as generalised metrics on reduced Courant algebroids which are related by a generalised isometry. There is a existence and uniqueness result for generalised isometric exact Courant algebroids coming from reductions.

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Primary author

Thomas De Fraja (Heriot-Watt University)


Richard Szabo (Heriot-Watt University) Vincenzo Marotta (Charles University)

Presentation materials