Testing multifield inflation: A geometric approach

We develop an approach for linking the power spectra, bispectrum, and trispectrum to the geometric and kinematical features of multifield inflationary Lagrangians. Our geometric approach can also be useful in determining when a complicated multifield model can be well approximated by a model with on...

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Bibliographic Details
Main Authors: Peterson, Courtney M., Tegmark, Max Erik
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2013
Online Access:http://hdl.handle.net/1721.1/80795
https://orcid.org/0000-0001-7670-7190