Scalar field dark energy and cosmic micr
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C. Baccigalupi; A. Balbi; S. Matarrese; F. Perrotta; N. Vittorio
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Article
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2003
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Elsevier Science
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English
β 602 KB
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