Dark fluid: A complex scalar field to unify dark energy and dark matter

Journal Article · Tue Aug 15 00:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.043516· OSTI ID:20870962

Arbey, Alexandre ^[1]

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1. Universite de Lyon 1, Centre de Recherche Astronomique de Lyon, Observatoire de Lyon, 9 avenue Charles Andre, F-69230 Saint Genis Laval (France) and CNRS, UMR 5574, Ecole Normale Superieure de Lyon, Lyon (France)

In this article, we examine a model which proposes a common explanation for the presence of additional attractive gravitational effects - generally considered to be due to dark matter - in galaxies and in clusters, and for the presence of a repulsive effect at cosmological scales - generally taken as an indication of the presence of dark energy. We therefore consider the behavior of a so-called dark fluid based on a complex scalar field with a conserved U(1)-charge and associated to a specific potential, and show that it can at the same time account for dark matter in galaxies and in clusters, and agree with the cosmological observations and constraints on dark energy and dark matter.

• OSTI ID: 20870962
• Journal Information: Physical Review. D, Particles Fields, Vol. 74, Issue 4; Other Information: DOI: 10.1103/PhysRevD.74.043516; (c) 2006 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
COSMOLOGY
FLUIDS
GALAXIES
NONLUMINOUS MATTER
POTENTIALS
QUANTUM FIELD THEORY
SCALAR FIELDS
U-1 GROUPS