Editing Non-Gaussianity

In [[physics]], a '''non-Gaussianity''' is the correction that modifies the expected [[Gaussian function]] estimate for the [[measurement]] of a [[physical quantity]].

In [[physical cosmology]], the fluctuations of the [[cosmic microwave background]] are known to be approximately Gaussian, both theoretically as well as experimentally. However, most theories predict some level of non-Gaussianity in the primordial density field. Detection of these non-Gaussian signatures will allow discrimination between various models of inflation and their alternatives.<ref>{{Cite web|title = Big Bang Secrets Swirling in a Fluid Universe|url = http://www.scientificamerican.com/article/big-bang-secrets-swirling-in-a-fluid-universe/|website = Scientific American|accessdate = 2015-12-22}}</ref>

== References ==
{{Reflist}}

==External links==
*[https://arxiv.org/abs/1002.3173 Testing gaussianity, homogeneity and isotropy with the cosmic microwave background]

{{Particles}}

[[Category:Measurement]]
[[Category:Physical cosmology]]


{{physical-cosmology-stub}}