Hybrid dark sector: Locked quintessence and dark matter.

Axenides, Minos and Dimopoulos, Konstantinos (2004) Hybrid dark sector: Locked quintessence and dark matter. Journal of Cosmology and Astroparticle Physics, 2004 (07). 010.

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Abstract

We present a unified model of dark matter and dark energy. The dark matter field is a modulus corresponding to a flat direction of supersymmetry, which couples, in a hybrid type potential, with the dark energy field. The latter is a light scalar, whose direction is stabilized by non-renormalizable terms. This quintessence field is kept 'locked' on top of a false vacuum due to the coupling with the oscillating dark matter field. It is shown that the model can satisfy the observations when we consider low-scale gauge-mediated supersymmetry breaking. The necessary initial conditions are naturally attained by the action of supergravity corrections on the potential, in the period following the end of primordial inflation.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Cosmology and Astroparticle Physics
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
23001
Deposited On:
19 Jan 2009 11:10
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Apr 2020 01:15