The acceleration of the universe and the physics behind it |
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Authors: | Jean-Philippe Uzan |
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Institution: | (1) Institut d’Astrophysique de Paris, Université Pierre & Marie Curie - Paris VI, CNRS-UMR 7095, 98 bis, Bd Arago, 75014 Paris, France |
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Abstract: | Using a general classification of dark enegy models in four classes, we discuss the complementarity of cosmological observations
to tackle down the physics beyond the acceleration of our universe. We discuss the tests distinguishing the four classes and
then focus on the dynamics of the perturbations in the Newtonian regime. We also exhibit explicitely models that have identical
predictions for a subset of observations. |
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Keywords: | |
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