PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE
 | PIRSA:11070039
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
Infinity, Finiteness and Inflationary Cosmology Speaker(s): Andreas Albrecht
Abstract: I analyze the various roles of infinity in current thinking about cosmology. Topics include initial conditions, attractor behavior, inflation and the precision and meaning of quantum measurements. I review the de Sitter equilibrium cosmology as an example of a finite cosmology, and present some new ... read more
Date: 14/07/2011 - 9:00 am
Collection: Challenges for Early Universe Cosmology - 2011
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 | PIRSA:11060003
( Flash Presentation , Windows Presentation , Windows Video File , 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 var... read more
Date: 15/06/2011 - 2:00 pm
Series: Colloquium
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 | Meet a Scientist - Prof. Andreas Albrecht Speaker(s): Andreas Albrecht
Abstract: Implications of high-energy elementary particle physics for physics of the early universe and its evolution (Big Bang, creation of matter, formation of galaxies, etc). And vice-versa: implications of observable cosmological data for fundamental physics.
Date: 05/10/2009 - 2:35 am
Collection: Meet a Scientist
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 | PIRSA:09070034
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
Challenges for a quantum theory of the universe Speaker(s): Andreas Albrecht
Abstract:
Date: 18/07/2009 - 2:30 pm
Collection: Holographic Cosmology Workshop - 2009
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 | PIRSA:08100066
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What will future dark energy experiments tell us? Speaker(s): Andreas Albrecht
Abstract:
Date: 23/10/2008 - 11:30 am
Collection: PI CITA Joint Cosmology Day - 2008
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 | PIRSA:08100038
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
The Clock Ambiguity and the Emergence of Physical Laws Speaker(s): Andreas Albrecht
Abstract: The “clock ambiguity” is a general feature of standard formulations of quantum gravity, as well as a much wider class of theoretical frameworks. The clock ambiguity completely undermines any attempt at uniquely specifying laws of physics at the fundamental level. In this talk I explain in simple... read more
Date: 22/10/2008 - 2:00 pm
Series: Colloquium
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 | PIRSA:08090045
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
The Clock Ambiguity and its Implications Speaker(s): Andreas Albrecht
Abstract:
Date: 04/09/2008 - 10:30 am
Collection: A Debate in Cosmology:The Multiverse - 2008
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