Multiple field inflation

By D. Wands. 2007

189 citations recorded by the source corpus.

Inflation offers a simple model for very early evolution of our universe and the origin of primordial perturbations on large scales. Over the last 25 years we have become familiar with the predictions of single-field models, but inflation with more than one light scalar field can alter preconceptions about the inflationary dynamics and our predictions for the primordial perturbations. I will discuss how future observational data could distinguish between inflation driven by one field, or many fields. As an example, I briefly review the curvation as an alternative to the inflaton scenario for the origin of structure.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/7354865b97e7eb3a796ff8e75b793c60fa1cb00e

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Citations in the corpus

Primordial bispectrum from multifield inflation with nonminimal couplings (2012, methodology): “In Section IV we analyze adiabiatic and entropy perturbations and quantify their coupling using a covariant version of the familiar transfer-function formalism [10, 12, 31].”
Review of local non-Gaussianity from multi-field inflation (2010, background): “There are popular multifield models [39] which may generate observably large non-Gaussianity.”
Primordial Non-Gaussianities from Inflation Models (2010, background): “The introductions to inflation and density perturbations can be found in many textbooks [15–20] and reviews [21–25].”
Inflation, Cosmic Perturbations and Non-Gaussianities (2013, background): “(2005) 421 p [15] D.”
Symmetries and loops in inflation (2012, background): “[42, 43] for reviews of non-Gaussianity in multi-field inflation).”