Primordial Non-Gaussianities(Chapter II: Cosmological perturbations,Cosmology-The Next Generation-)

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概要

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• This contribution gives an overview on primordial non-Gaussianities from a theoretical perspective. After presenting a general formalism to describe nonlinear cosmological perturbations, several classes of models, illustrated with examples, are discussed: multi-field inflation with non-standard Lagrangians, modulaton fields, curvaton fields. In the latter case, a special emphasis is put on the isocurvature perturbations, which could leave a specific signature in non-Gaussianities.

• 2011-10-31

著者

• Langlois David

  Apc(cnrs-universite Paris 7)

• LANGLOIS David

  APC(CNRS-Universite Paris 7),

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• Primordial Non-Gaussianities(Chapter II: Cosmological perturbations,Cosmology-The Next Generation-)

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