Abstract
Maximal and non-maximal supergravities in three dimensions allow for a large variety of semisimple (Chern-Simons) gauge groups. In this paper, we analyze non-semisimple and complex gauge groups that satisfy the pertinent consistency relations for a maximal (N=16) gauged supergravity to exist. We give a general procedure how to generate non-semisimple gauge groups from known admissible semisimple gauge groups by a singular boost within E8(8). Examples include the theories with gauge group SO(8)×T28 that describe the reduction of IIA/IIB supergravity on the seven-sphere. In addition, we exhibit two ‘strange embeddings’ of the complex gauge group into (real) E8(8) and prove that both can be consistently gauged. We discuss the structure of the associated scalar potentials as well as their relation to those of D≥4 gauged supergravities.
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Communicated by G.W. Gibbons
This work is partly supported by EU contract HPRN-CT-2000-00122 and HPRN-CT-2000-00131.
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Fischbacher, T., Nicolai, H. & Samtleben, H. Non-Semisimple and Complex Gaugings of N=16 Supergravity. Commun. Math. Phys. 249, 475–496 (2004). https://doi.org/10.1007/s00220-004-1081-z
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DOI: https://doi.org/10.1007/s00220-004-1081-z