Sp-branes: integrable multidimensional cosmologies
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Дата
2007
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Науковий керівник
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Анотація
We investigate time-dependent solutions (Sp-brane solutions) for product manifolds consisting of
factor spaces where only one of them is of a non-Ricci-flat type. Our model contains a minimally
coupled free scalar field and form field (flux) as matter sources.We discuss the possibility of generating
late-time acceleration of the Universe. For these models, we investigate the variation with time of
the effective four-dimensional fundamental ‘constants’. We show that experimental bounds for the
fundamental constant variations apply strong restrictions to the considered models.
Опис
Ключові слова
Multidimensional cosmology, Acceleration, Variation in fundamental constants
Бібліографічний опис
Astronomical & Astrophysical Transactions. The Journal of the Eurasian Astronomical Society