| Speaker: | Kurt Hinterbichler (Perimeter) |
|---|---|
| Title: | The pseudo-conformal universe |
| Date (JST): | Tue, Oct 16, 2012, 15:30 - 16:30 |
| Place: | Seminar Room B |
| Related File: | 785.pdf |
| Abstract: | The pseudo-conformal universe is a framework for the early universe which is an alternative to inflation. As opposed to the de Sitter space of inflation, in this scenario the early universe is a nearly flat Minkowski space with a conformal field theory. Some of the fields of the CFT get a time-dependent VEV, which spontaneously breaks the conformal symmetry down to a de Sitter subgroup. This generates a scale invariant spectrum of perturbations, and solves the standard flatness and horizon problems. |
