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SUMMARY:How UV sensitive is inflation? - Watson\, S (Syracuse University)
DTSTART:20120627T153000Z
DTEND:20120627T154500Z
UID:TALK38697@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:We investigate the validity of effective field theory methods 
 and the decoupling of heavy fields during inflation. Considering models of
  inflation in which the inflaton is coupled to heavy degrees of freedom\, 
 we find that violations of decoupling are absent unless there is a breakdo
 wn of the slow-roll conditions. Next we allow for a temporary departure fr
 om inflation resulting in a period of non-adiabaticity during which effect
 ive field theory methods are known to fail. We find that the locality of t
 he event and energy conservation lead to a tight bound on the size of the 
 effects of the heavy field. \n
LOCATION:Seminar Room 1\, Newton Institute
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