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SUMMARY:A fully-covariant natural ultraviolet cutoff in inflationary space
 times - Aidan Chatwin-Davies (U. Waterloo)
DTSTART:20121026T120000Z
DTEND:20121026T130000Z
UID:TALK39778@talks.cam.ac.uk
CONTACT:Ivan Agullo
DESCRIPTION:The effects that quantum gravity-motivated natural UV cutoffs 
 at the Planck scale have on inflationary predictions for the CMB have garn
 ered much interest in the literature. So far\, these studies have been mos
 tly confined to UV cutoffs that are locally Lorentz symmetry-breaking. Her
 e\, we propose a locally Lorentz covariant approach which takes the form o
 f a cutoff on the local density of dynamical degrees of freedom of the fie
 ld theory. This cutoff has an intuitive information theoretic interpretati
 on within the framework of sampling theory\, the field of mathematics that
  connects discrete information with continuous information. We are studyin
 g the type and magnitude of possible signatures that this covariant cutoff
  would have in the CMB.\n
LOCATION:Pavilion B Potter Room (B1.19)
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