Testing for a super-acceleration phase of the universe

Journal Article · Wed Jun 15 00:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.123003· OSTI ID:20709514

Kaplinghat, Manoj; Bridle, Sarah ^[1]

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1. Department of Physics and Astronomy, University of California, Irvine, California 92612 (United States)

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.

• OSTI ID: 20709514
• Journal Information: Physical Review. D, Particles Fields, Vol. 71, Issue 12; Other Information: DOI: 10.1103/PhysRevD.71.123003; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATION
COSMOLOGY
ENERGY DENSITY
EQUATIONS OF STATE
EVOLUTION
NONLUMINOUS MATTER
RELICT RADIATION
TESTING
UNIVERSE