Identifying the inflaton with primordial gravitational waves - Astrophysics > Cosmology and Nongalactic AstrophysicsReport as inadecuate




Identifying the inflaton with primordial gravitational waves - Astrophysics > Cosmology and Nongalactic Astrophysics - Download this document for free, or read online. Document in PDF available to download.

Abstract: We explore the ability of experimental physics to uncover the underlyingstructure of the gravitational Lagrangian describing inflation. While theobservable degeneracy of the inflationary parameter space is large, futuremeasurements of observables beyond the adiabatic and tensor two-pointfunctions, such as non-Gaussianity or isocurvature modes, might reduce thisdegeneracy. We show that even in the absence of such observables, the range ofpossible inflaton potentials can be reduced with a precision measurement of thetensor spectral index, as might be possible with a direct detection ofprimordial gravitational waves.



Author: Damien A. Easson, Brian A. Powell

Source: https://arxiv.org/







Related documents