POWER LAW COSMOLOGICAL SOLUTION DERIVED FROM THE DGP BRANE WITH A BRANE TACHYON FIELD
Abstract
By studying a tachyon field on the DGP brane model, in order to embed the 4D standard Friedmann equation with a brane tachyon field in the 5D bulk, we present the metric of the 5D space–time. Then, adopting the inverse square potential of the tachyon field, we obtain an expanding universe with a power law on the brane and an exact 5D solution.
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