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          Institute: MPI für Gravitationsphysik     Collection: Quantum Gravity and Unified Theories     Display Documents



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ID: 21479.0, MPI für Gravitationsphysik / Quantum Gravity and Unified Theories
Non-semisimple and complex gaugings of N=16 supergravity
Authors:Fischbacher, Thomas; Nicolai, Hermann; Samtleben, Henning
Language:English
Date of Publication (YYYY-MM-DD):2004
Title of Journal:Communications in Mathematical Physics
Volume:249
Start Page:475
End Page:496
Review Status:not specified
Audience:Not Specified
Abstract / Description: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 E_{8(8)}. Examples include the theories with gauge group SO(8) x T_{28} that describe the reduction of IIA/IIB supergravity on the seven-sphere. In addition, we exhibit two `strange embeddings' of the complex gauge group SO(8,C) into (real) E_{8(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>3 gauged supergravities.
External Publication Status:published
Document Type:Article
Communicated by:Hermann Nicolai
Affiliations:MPI für Gravitationsphysik/Quantum Gravity and Unified Theories
Identifiers:URL:http://www.springerlink.com/openurl.asp?genre=arti...
ISSN:1432-0916 [online]
DOI:10.1007/s00220-004-1081-z
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