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The Dynamics of coset dimensional reduction

Karthauser, Josef L.P.; Saffin, Paul M.

Authors

Josef L.P. Karthauser

Paul M. Saffin



Abstract

The evolution of multiple scalar fields in cosmology has been much studied, particularly when the potential is formed from a series of exponentials. For a certain subclass of such systems it is possible to get `assisted` behaviour, where the presence of multiple terms in the potential effectively makes it shallower than the individual terms indicate. It is also known that when compactifying on coset spaces one can achieve a consistent truncation to an effective theory which contains many exponential terms, however, if there are too many exponentials then exact scaling solutions do not exist. In this paper we study the potentials arising from such compactifications of eleven dimensional supergravity and analyse the regions of parameter space which could lead to scaling behaviour.

Journal Article Type Article
Publication Date Apr 28, 2006
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 73
Issue 8
APA6 Citation Karthauser, J. L., & Saffin, P. M. (2006). The Dynamics of coset dimensional reduction. Physical Review D, 73(8), doi:10.1103/PhysRevD.73.084027
DOI https://doi.org/10.1103/PhysRevD.73.084027
Publisher URL https://journals.aps.org/prd/abstract/10.1103/PhysRevD.73.084027
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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