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Inflation and Dark Energy from spectroscopy at z > 2

Ferraro, Simone and Doré, Olivier and Prakash, Abhishek (2019) Inflation and Dark Energy from spectroscopy at z > 2. Astro2020 Science White Paper, . (Unpublished)

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The expansion of the Universe is understood to have accelerated during two epochs: in its very first moments during a period of Inflation and much more recently, at z < 1, when Dark Energy is hypothesized to drive cosmic acceleration. The undiscovered mechanisms behind these two epochs represent some of the most important open problems in fundamental physics. The large cosmological volume at 2 < z < 5, together with the ability to efficiently target high-z galaxies with known techniques, enables large gains in the study of Inflation and Dark Energy. A future spectroscopic survey can test the Gaussianity of the initial conditions up to a factor of ~50 better than our current bounds, crossing the crucial theoretical threshold of σ(f^(local)_(NL)) of order unity that separates single field and multi-field models. Simultaneously, it can measure the fraction of Dark Energy at the percent level up to z = 5, thus serving as an unprecedented test of the standard model and opening up a tremendous discovery space.

Item Type:Report or Paper (White Paper)
Related URLs:
URLURL TypeDescription Paper
Doré, Olivier0000-0002-5009-7563
Prakash, Abhishek0000-0003-4451-4444
Group:Infrared Processing and Analysis Center (IPAC), TAPIR
Series Name:Astro2020 Science White Paper
Record Number:CaltechAUTHORS:20190925-111119374
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98855
Deposited By: Tony Diaz
Deposited On:25 Sep 2019 18:18
Last Modified:03 Oct 2019 21:45

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