| Speaker: | Gary Shiu (UW Madison/HKUST) |
|---|---|
| Title: | Large Field Inflation in String Theory |
| Date (JST): | Wed, Jan 28, 2015, 13:30 - 14:30 |
| Place: | Seminar Room A |
| Abstract: | An observable that plays a decisive role in discriminating classes of inflationary models is primordial gravitational wave, imprinted in B-mode polarization of the CMB. Although a detectable level of primordial B-mode is not a must for inflation, such a signal if observed would naturally point us to ``large field" inflationary models. Models in which the inflaton transverses super-Planckian distance in field space are sensitive to the ultraviolet completion of gravity. Thus, a proper formulation of large eld models calls for inputs from quantum gravity. In this talk, I will describe some recent attempts to construct concrete large field inflation models in string theory. |
