| DATE: |
2014-01-29 11:00 - 12:00 |
| PLACE: |
Kenkyu Honkan 1F meeting room 3 |
| TITLE: |
Monodromy Inflation: Nonlinear Dynamics and Observational Status |
| CONTACT: |
Masato Nozawa, nozawa.m-AT-post.kek.jp |
| SPEAKER: |
Professor. Richard Easther (The University of Auckland ) |
| LANGUAGE: |
English |
| ABSTRACT: |
I will discuss the phenomenology and observational status of monodromy inflation. This apparently simple model is based on a stringy axion associated with a weakly broken shift-symmetry. I will show that the post-inflationary dynamics may naturally contain a phase where the universe is dominated by oscillons, pseudo-stable solutions of a nonlinear scalar field theories. Conversely, the inflationary perturbations can include a superimposed ``modulation'', and I will discuss current constraints on the amplitude of these modulations, derived from the WMAP and Planck datasets. |
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