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SUMMARY:Oscillations in the primordial bispectrum - Daan Meerburg (Amsterd
 am)
DTSTART:20100607T120000Z
DTEND:20100607T130000Z
UID:TALK24286@talks.cam.ac.uk
CONTACT:Tasos Avgoustidis
DESCRIPTION:Constraining non-Gaussianities in the Cosmic Microwave Backgro
 und (CMB) via the bispectrum allows us to the probe the interactions of th
 e field(s) sourcing inflation. As such\, the bispectrum can be considered 
 the perfect tool for determining the theory of inflation (the Lagrangian).
  Although a number of scenarios exists that give rise to a class of bispec
 tra (e.g. local\, equilateral) I will discuss 3 models that give rise to a
  rather unique feature\; oscillations. Due to the nature of these features
 \, constraining parameters in the associated theories is rather difficult.
  Only once we can establish an estimate of the frequency\, can we hope to 
 effectively search for such bispectra in the data. I will  discuss (severa
 l) possibilities to extract this information. 
LOCATION:CMS\, Pav.B\, CTC Common Room (B1.19)
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