Colin Sterckx - How to uplift non-maximal gauged supergravities

par Colin Sterckx (ULB)

mercredi 26 nov. 2025, 16:00 → 17:00 Europe/Paris

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Abstract: Embedding lower-dimensional supergravities into type II and eleven-dimensional theories has been central to constructing new supergravity solutions and analysing them using string-theoretic tools such as the AdS/CFT correspondence. In this talk, I will present a general framework for uplifting non-maximal gauged supergravities using exceptional field theory and generalised geometry, extending techniques previously available only for maximal supergravities. Our method put constraints on the internal manifolds, which must admit an effective action of the gauge group, and we show that the consistency of the uplift reduces to a PDE on the quotient of the internal manifold by this action. I will illustrate the framework through the complete classification of type IIB uplifts of four-dimensional half-maximal SO(4)-gauged supergravity. This will provide consistent truncations around any of the D’Hoker–Estes–Gutperle AdS_4 solutions.

Link: Zoom

AnLy: https://sites.google.com/view/anlystringsandfields