IIB Supergravity Revisited
Eric A. Bergshoeff, Mees de Roo, Sven F. Kerstan, Fabio Riccioni

TL;DR
This paper revisits IIB supergravity, demonstrating the inclusion of new ten-form potentials within an SU(1,1)-covariant framework, aligning with $E_{11}$ symmetry and detailing supersymmetry and gauge transformations.
Contribution
It introduces a doublet and quadruplet of ten-form potentials in IIB supergravity, consistent with $E_{11}$ symmetry, and provides comprehensive supersymmetry and gauge transformation formulations.
Findings
Introduction of ten-form potentials in supergravity
Consistency with $E_{11}$ symmetry
Complete supersymmetry and gauge transformation details
Abstract
We show in the SU(1,1)-covariant formulation that IIB supergravity allows the introduction of a doublet and a quadruplet of ten-form potentials. The Ramond-Ramond ten-form potential which is associated with the SO(32) Type I superstring is in the quadruplet. Our results are consistent with a recently proposed symmetry underlying string theory. For the reader's convenience we present the full supersymmetry and gauge transformations of {\it all} fields both in the manifestly SU(1,1) covariant Einstein frame and in the real U(1) gauge fixed string frame.
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