David Lowe (31/03/15)

Benedikt Magnússon, mars 27, 2015

Málstofa í stærðfræði

Fyrirlesari: David Lowe
Titill: Cosmology from conformal field theory

Staðsetning: VR-156
Tími: Þriðjudagur 31. febrúar, frá 15:00-16:00.

Ágrip:

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.