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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: Article
Journal or Publication Title: Journal of Cosmology and Astroparticle Physics
Uncontrolled Keywords: dark matter ; dark energy theory ; cosmology of theories beyond the SM ; physics of the early universe
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23001
Deposited By: Dr Konstantinos Dimopoulos
Deposited On: 19 Jan 2009 11:10
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 16:09
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23001

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