Quintessence cosmologies with a growing matter component - INSPIRE

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Quintessence cosmologies with a growing matter component

Luca Amendola
(
- Rome Observ.
)
,
Marco Baldi
(
- Garching, Max Planck Inst.
)
,
Christof Wetterich
(
- Heidelberg U.
)

Jun, 2007

6 pages

Published in:

Phys.Rev.D 78 (2008) 023015

e-Print:

0706.3064 [astro-ph]

DOI:

10.1103/PhysRevD.78.023015

View in:

ADS Abstract Service

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Abstract: (arXiv)

We investigate quintessence cosmologies with a matter component consisting of particles with an increasing mass. While negligible in early cosmology, the appearance of a growing matter component has stopped the evolution of the cosmon field at a redshift around six. In turn, this has triggered the accelerated expansion of the Universe. We propose to associate growing matter with neutrinos. Then the presently observed dark energy density and its equation of state are determined by the neutrino mass.

95.36.+x
95.35.+d
quintessence
mass: time dependence
expansion: acceleration
neutrino: mass
dark energy: density
equation of state
numerical calculations

References(24)

Figures(0)

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