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SUMMARY:Deciphering cosmological information from nonlinear structures - R
 obert E. Smith (Sussex)
DTSTART:20170313T130000Z
DTEND:20170313T140000Z
UID:TALK70188@talks.cam.ac.uk
CONTACT:Tobias Baldauf
DESCRIPTION:Current analysis of large-scale structure data focuses mainly 
 on exploiting the lowest order clustering statistics of the density field 
 — this is mainly due to the fact that the theoretical modelling and data
  analysis methods are well developed and easier to implement. However\, fu
 ture spectroscopic and photometric surveys of the Universe\, just like the
  CMB sky\, will soon become cosmic variance limited on the largest scales 
 where linear physics applies. In that case we are inexorably drawn to util
 ise smaller scales where nonlinear physics applies. \nIn this talk\, I aim
  to demonstrate that there is in fact a wealth of information locked up in
  the non-Gaussian signatures of the CDM density field and that one of the 
 challenges for the future will be how best to extract it. I will also revi
 ew a few new methods that we have been working on at Sussex and will also 
 describe our recent attempts to identify a set of "optimal tools" for doin
 g so.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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