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SUMMARY:Daniel Green (UCSD)
DTSTART:20240430T193000Z
DTEND:20240430T203000Z
DTSTAMP:20260423T005648Z
UID:HET/59
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/HET/59/">Cos
 mic Surveys and the Quantum Universe</a>\nby Daniel Green (UCSD) as part o
 f Purdue HET\n\nLecture held in Room 242.\n\nAbstract\nUnderstanding the q
 uantum nature of accelerating cosmologies is essential to making sense of 
 the past\, present\, and future of our Universe. One important quantity re
 levant to the dynamics of these epoches is the spectrum of quantum fluctua
 tions\, organized by scaling dimensions that control how these fluctuation
 s redshift away.  When these fluctuations are coupled to the inflaton in t
 he early universe\, this scaling behavior appears in the statistics of the
  density fluctuations and can be measured with galaxy surveys. Remarkably\
 , self-consistency of these late universe observations with the symmetries
  of the early universe place non-trivial constraints on both the dynamics 
 of inflation and the statistics of galaxies. In this talk\, I will explain
  how these connections arise\, what they can tell us about the Universe\, 
 and the current constraints and future prospects for measuring these dimen
 sions with cosmic surveys.\n
LOCATION:https://researchseminars.org/talk/HET/59/
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