Modeling Non-Gaussianity from Scalar Field Inflation
The Cosmic Microwave Background (CMB) radiation encodes invaluable information about types of space-time distortions the universe experienced during its early inflationary epoch. This research draws upon data from the Planck Satellite to characterize the non-Gaussianity of the CMB fluctuations—in other words, the extent to which the fluctuations are independent at different angular scales. It then proposes a model of cosmological inflation based on coupled scalar fields that accounts for appreciable non-Gaussianity and illustrates how the constraining the parameter space of the model forces it to comply with the measured non-Gaussianity.
Byrne, Ruby L.
"Modeling Non-Gaussianity from Scalar Field Inflation,"
Macalester Journal of Physics and Astronomy:
1, Article 2.
Available at: http://digitalcommons.macalester.edu/mjpa/vol2/iss1/2