Sp-branes: integrable multidimensional cosmologies

Details Sp-branes: integrable multidimensional cosmologies Sp-branes: integrable multidimensional cosmologies

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006a%26at...25..441b&link_type=abstract

Astronomical and Astrophysical Transactions, vol. 25, Issue 5, p.441-446

Astronomy and Astrophysics

Astrophysics

Scientific paper

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.

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