Scientific Seminars
Measuring and explaining dark energy
J. Peacock
The Royal Observatory, Edinburgh
2012-06-19 11.00 Merate - POE
I give a summary of the reasons for believing that the energy density of the universe is dominated by a nearly uniform component, and show what we have been able to learn about its empirical properties. I then survey the different possible explanations that exist for this phenomenon: vacuum fluctuations; scalar fields of various kinds; modifications of gravity; the multiverse. |