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Scalar field oscillations contributing to dark energy

✍ Scribed by Massó, Eduard; Rota, Francesc; Zsembinszki, Gabriel


Book ID
120305415
Publisher
The American Physical Society
Year
2005
Tongue
English
Weight
176 KB
Volume
72
Category
Article
ISSN
1550-7998

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A dynamical scalar field represents the simplest generalization of a pure Cosmological Constant as a candidate to explain the recent evidence in favour of the accelerated cosmic expansion. We review the dynamical properties of such a component, and argue that, even if the background expectation valu