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Description

One of the most powerful applications of exceptional and double field theories has been in the study of consistent truncations via generalised Scherk-Schwarz reductions which preserve all supersymmetries. In this talk I will show how to generalise the Scherk-Schwarz procedure to define consistent truncations which break half the supersymmetries. This allows for the study of exceptional field theories on CY-surfaces and their torsion-full counterparts. Finally, I will discuss how one can use the truncation procedure to reduce exceptional field theory to heterotic double field theory, corresponding to the heterotic / M-theory duality.