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Primordial Non-Gaussianity

Meerburg, P. Daniel and Doré, Olivier and Schillaci, Alessandro and Wise, Mark (2019) Primordial Non-Gaussianity. Astro2020 Science White Paper, . (Unpublished) https://resolver.caltech.edu/CaltechAUTHORS:20190925-095718211

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Abstract

Our current understanding of the Universe is established through the pristine measurements of structure in the cosmic microwave background (CMB) and the distribution and shapes of galaxies tracing the large scale structure (LSS) of the Universe. One key ingredient that underlies cosmological observables is that the field that sources the observed structure is assumed to be initially Gaussian with high precision. Nevertheless, a minimal deviation from Gaussianityis perhaps the most robust theoretical prediction of models that explain the observed Universe; itis necessarily present even in the simplest scenarios. In addition, most inflationary models produce far higher levels of non-Gaussianity. Since non-Gaussianity directly probes the dynamics in the early Universe, a detection would present a monumental discovery in cosmology, providing clues about physics at energy scales as high as the GUT scale.


Item Type:Report or Paper (White Paper)
Related URLs:
URLURL TypeDescription
https://arxiv.org/abs/1903.04409arXivDiscussion Paper
ORCID:
AuthorORCID
Doré, Olivier0000-0002-5009-7563
Series Name:Astro2020 Science White Paper
Record Number:CaltechAUTHORS:20190925-095718211
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190925-095718211
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98846
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:25 Sep 2019 17:13
Last Modified:03 Oct 2019 21:44

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