Title

Liberating the Inflaton from Primordial Spectrum Constraints

Author(s)/Creator(s)

Christian Armendariz-Picon, Department of Physics, Syracuse University, Syracuse, NYFollow

Document Type

Article

Date

10-17-2003

Language

English

Disciplines

Physics

Description/Abstract

I discuss a mechanism that renders the spectral index of the primordial spectrum and the inflationary stage independent of each other. If a scalar field acquires an appropriate time-dependent mass, it is possible to generate an adiabatic, Gaussian scale invariant spectrum of density perturbations during any stage of inflation. As an illustration, I present a simple model where the time-dependent mass arises from the coupling of the inflaton to a second scalar. The mechanism I propose might help to implement a successful inflationary scenario in particle physics theories that do not yield slow-roll potentials.

Additional Information

7 two-column pages, 1 figure. Uses RevTeX4 More information at http://arxiv.org/abs/astro-ph/0310512

Recommended Citation

Armendariz-Picon, Christian, "Liberating the Inflaton from Primordial Spectrum Constraints" (2003). Physics - All Scholarship. 218.
https://surface.syr.edu/phy/218

Source

Harvested from Arxiv.org