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Testing for a superacceleration phase of the universe

Dec, 2003
8 pages
Published in:
  • Phys.Rev.D 71 (2005) 123003
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Abstract: (arXiv)
We propose a method to probe the phenomenological nature of dark energy which makes no assumptions about the evolution of its energy density. We exemplify this method with a test for a super-acceleration phase of the universe i.e., a phase when the dark energy density grows as the universe expands. We show how such a phase can be detected by combining SNIa (SNAP-like) and CMB (Planck) data without making any assumptions about the evolution of the dark energy equation of state, or about the value of the matter density parameter.
  • 98.70.Vc
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