David Lowe (31/03/15)

Benedikt Magnússon, March 27, 2015

Math Colloquium

Speaker: David Lowe
Title: Cosmology from conformal field theory

Location: VR-156
Time: Tuesday, March 31., at 15:00-16:00.

Abstract:

Our universe appears to be entering a de Sitter phase, where expansion becomes dark energy dominated. In this limit, the isometries of the spacetime are the same as the conformal group. There exists an integral transform that maps spacetime observables to holographic observables respecting the conformal symmetry. By studying the properties of this holographic conformal field theory, we deduce long wavelength instabilities appear after a large number of e-folds of expansion.