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High Energy Physics - Theory, hep-th,General Relativity and Quantum Cosmology, gr-qc
Abstract:
Exceptional field theories yield duality covariant formulations of
supergravity. We show that they provide a highly efficient tool to compute the
Kaluza-Klein mass spectra associated to compactifications around various
background geometries relevant for string theory and holographic applications.
This includes geometries with little to no remaining symmetries, hardly
accessible to standard methods. As an illustration, we work out the masses of
some higher Kaluza-Klein multiplets around warped geometries corresponding to
some prominent ${\cal N} = 2$ supersymmetric AdS vacua in maximal supergravity.
