Multi-field inflation and cosmological perturbations

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38 Scopus citations


We provide a concise review on multi-field inflation and cosmological perturbations. We discuss convenient and physically meaningful bases in terms of which perturbations can be systematically studied. We give formal accounts on the gauge fixing conditions and present the perturbation action in two gauges. We also briefly review nonlinear perturbations.

Original languageEnglish
Article number1740003
JournalInternational Journal of Modern Physics D
Issue number1
StatePublished - 1 Jan 2017


  • Cosmology
  • cosmological perturbations
  • inflation
  • multi-field dynamics


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