A nonlinear multidimensional gravitational model R+R-1 with form fields and stabilized extra dimensions
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Дата
2007
Автори
Науковий керівник
Укладач
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Видавець
Madrid : Consejo Superior de Investigaciones Científicas, Instituto Miguel Asín,
Анотація
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.
Опис
Ключові слова
Multidimensional cosmology, Accelerating expansion, Extra-dimension stabilization
Бібліографічний опис
Astronomical & Astrophysical Transactions. The Journal of the Eurasian Astronomical Society