Primordial Non-Gaussianity
By Primordial Non-Gaussianity, P. Meerburg, D. Green, Muntazir M. Abidi, M. Amin, Peter Adshead, Z. Ahmed, D. Alonso, B. Ansarinejad, R. Armstrong and 169 more. 2019
177 citations recorded by the source corpus.
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.
Subfields: Atomic and Molecular Physics, and Optics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/5491a67e0b65b9610c3c50fabfceaa48ba0be1b1
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Atomic and Molecular Physics, and Optics
In Statistical and Nonlinear Physics
Citations in the corpus
- Building a boostless bootstrap for the bispectrum (2020, background): “The simplest correlator, namely the two-point function or power spectrum of curvature perturbations has been measured and strongly constrained by cosmological observations, while higher-point correlators, sensitive to primordial non-Gaussianity, as well as correlators involving tensor modes are the ”