BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:The Separate Universe Approach to Soft Limits - Zachary Kenton (Qu
 eenMary)
DTSTART:20161017T120000Z
DTEND:20161017T130000Z
UID:TALK67651@talks.cam.ac.uk
CONTACT:Tobias Baldauf
DESCRIPTION:In this talk I'll calculate soft limits of n-point inflationar
 y correlation functions using separate universe techniques. Our approach n
 aturally allows for multiple fields and leads to an elegant diagrammatic a
 pproach. We apply this to the bispectrum and trispectrum\, giving explicit
  formulae for all possible single- and double-soft limits. When compared t
 o previous work on the bispectrum we find a 20% theoretical correction to 
 observable parameters relevant for future cosmological experiments. We als
 o investigate consistency relations and present an infinite tower of inequ
 alities between soft correlation functions which generalise the Suyama-Yam
 aguchi inequality.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
END:VEVENT
END:VCALENDAR