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SUMMARY:An Effective Field Theory Approach to Cosmic Acceleration - Scott 
 Watson\, Syracuse University
DTSTART:20100611T120000Z
DTEND:20100611T130000Z
UID:TALK25145@talks.cam.ac.uk
CONTACT:David Kubiznak
DESCRIPTION:I will discuss a unified framework for studying late time cosm
 ic acceleration. I will show that by using the methods of effective field 
 theory\, many of the existing models of dark energy can be subsumed in a s
 ingle framework\, rather than many compartmentalized theories. This approa
 ch has the advantage that existing observational constraints (which I will
  discuss) can be combined with theoretical consistency conditions such as\
 nlocality and unitarity. By combining both types of constraints we will se
 e that it is quite challenging to build realistic models to account for th
 e current period of accelerated expansion.
LOCATION:Pavilion B Potter Room (B1.19)
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