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arxiv: astro-ph/0404086 · v1 · submitted 2004-04-05 · 🌌 astro-ph · gr-qc· hep-ph· hep-th

Exact solutions for the interacting tachyonic-dark matter system

classification 🌌 astro-ph gr-qchep-phhep-th
keywords exactinteractingmattersolutionsacceleratedarisescoincidencecold
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We find exact solutions leading to power law accelerated expansion for a homogeneous, isotropic and spatially flat universe, dominated by an interacting mixture of cold dark matter and a tachyonic field such that the ratio of the energy densities of both components at late times is constant and no coincidence problem arises.

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