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Title: A nonlinear multidimensional gravitational model R+R-1 with form fields and stabilized extra dimensions
Authors: Saidov, T.
Zhuk, Alexander
Citation: Astronomical & Astrophysical Transactions. The Journal of the Eurasian Astronomical Society
Issue Date: 2007
Publisher: Madrid : Consejo Superior de Investigaciones Científicas, Instituto Miguel Asín,
Keywords: Multidimensional cosmology
Accelerating expansion
Extra-dimension stabilization
Series/Report no.: 6-th Gamow summer school
Abstract: We studied multidimensional gravitational models with scalar curvature nonlinearity of the type R−1 and with form fields (fluxes) as a matter source. It is assumed that the higher-dimensional space–time undergoes Freund–Rubin-like spontaneous compactification to a warped product manifold. It is shown that for certain parameter regions the model allows for freezing stabilization of the internal space near the positive minimum of the effective potential, which plays the role of the positive effective cosmological constant. However, the parameters of model should be fine tuned to obtain the observable dark energy.
ISSN: 1055-6796 print
1476-3540 online
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