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SUMMARY:Probing Primordial Non-Gaussianity with the Topology of CMB and La
 rge-Scale Structure - Chiaki Hikage (University of Cardiff)
DTSTART:20080122T163000Z
DTEND:20080122T173000Z
UID:TALK9965@talks.cam.ac.uk
CONTACT:Jane Buckle
DESCRIPTION:Non-Gaussianity in primordial density fields is known\nto be a
  unique probe to discriminate inflationary models.\nI present the effect o
 f primordial non-Gaussianity\non CMB temperature anisotropy and large-scal
 e structure\nwith a focus on their topological properties quantitatively\n
 characterized by the Minkowski functionals.\nDeriving analytical formulae 
 of the Minkowski Functionals\nfrom primordial non-Gaussianity\, I apply it
  to compare with\nWMAP data and then give a new constraint\non a usual non
 -linear coupling parameter fNL.\nI also present the effect of primordial n
 on-Gaussianity\non the development of large-scale structure using N-body s
 imulations.
LOCATION:Ryle Seminar Room\, Cavendish Laboratory
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