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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:11060003  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Inflation, infinity, equilibrium and the observable Universe
Speaker(s): Andreas Albrecht
Abstract: Cosmic inflation has given us a remarkably successful cosmological phenomenology. But the original goal of explaining why the cosmos is *likely* to take the form we observe has proven very difficult to realize. I review the status of "eternal inflation" with an eye on the roles various infinities have (both helpful and unhelpful) in our current understanding. I then discuss attempts to construct an alternative cosmological framework that is truly finite, using ideas about equilibrium and dark energy. I report some recent results that point to observable signatures.
Date: 15/06/2011 - 2:00 pm
Series: Colloquium
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