- Home »
- Causal Set Cosmology

Speaker(s):

Scientific Areas:

Collection/Series:

PIRSA Number:

09090001

The standard model of cosmology has some puzzles/problems such as the

cosmological constant problem and the horizon problem which according to

many stem from our lack of understanding of the very early universe. This in turn means that almost none of the theories of quantum gravity are at a

stage where anything substantial can be said about observational cosmology.

In the past few years Causal Set theory has proved itself different in this

case where a possible solution to the Cosmological constant problem was

proposed. Now some work in progress has also shown that some models of

Causal Set dynamics give exponential expansion in the early universe. I hope to discuss both of these exciting prospects but this talk will mainly focus on the first proposal.

©2012 Perimeter Institute for Theoretical Physics