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Special Cosmology Seminar

Exploring the Dark Side of the Universe with Large-Scale Structure
Presented by Roland de Putter
California Institute of Technology

Thursday, March 8, 2018
1:15 P.M. in 169-336

Abstract
Cosmological large-scale structure is a unique probe of many fundamental physics questions that are hard or even impossible to address with conventional terrestrial experiments and the next generation of space missions, such as WFIRST, EUCLID and SPHEREx, will address these questions at unprecedented precision. In this seminar, I will focus on the potential of future galaxy surveys to elucidate the nature of inflation, the early phase of accelerated expansion driven by the dark energy of the primordial Universe. After discussing whether future observations can detect leftover quantum effects in the primordial density perturbations generated by inflation, I will explain how upcoming galaxy surveys may distinguish between single- and multifield scenarios by taking advantage of the imprint of primordial non-Gaussianity on the galaxy power spectrum and higher order statistics. In particular, I will discuss the exciting prospects for the proposed SPHEREx space telescope. In the final part of the seminar, I will briefly discuss other opportunities with future data sets, with a focus on the strong potential of joint analyses of spectroscopic and photometric redshift surveys.

JPL Contact: If you would like to meet with the speaker, contact Jason Rhodes (4-3304).


SVCP Astrophysics


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