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. |