Primordial non-Gaussianity from the large scale structure

TL;DR

This paper reviews efforts to detect primordial non-Gaussianity in the large scale structure of the Universe, which could reveal insights into the early universe's physical mechanisms.

Contribution

It provides a comprehensive overview of past and current methods used to search for primordial non-Gaussianity in large scale structure data.

Findings

Summarizes key observational constraints on non-Gaussianity.

Highlights challenges and future prospects in detection.

Discusses implications for cosmological models.

Abstract

Primordial non-Gaussianity is a potentially powerful discriminant of the physical mechanisms that generated the cosmological fluctuations observed today. Any detection of non-Gaussianity would have profound implications for our understanding of cosmic structure formation. In this paper, we review past and current efforts in the search for primordial non-Gaussianity in the large scale structure of the Universe.