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SEQUENCE:1
UID:UW-Physics-Event-6329
DTSTART:20210226T200000Z
DTEND:20210226T210000Z
DTSTAMP:20260415T003441Z
LAST-MODIFIED:20210223T195021Z
LOCATION:For zoom link\, sign up at: https://groups.google.com/a/g-gro
 ups.wisc.edu/d/forum/theoryseminars/join
SUMMARY:Decoding and bootstrapping cosmological fluctuations\, Theory 
 Seminar (High Energy/Cosmology)\, Guilherme Pimentel\, Leiden Universi
 ty & University of Amsterdam
DESCRIPTION:I will review our current understanding of the initial con
 ditions of the universe\, and describe what information is available f
 rom current and future measurements of cosmological correlation functi
 ons. Then I will describe a new method to compute and constrain the po
 ssible shapes of those correlation functions\, assuming they were gene
 rated during inflation. This ``cosmological bootstrap” draws inspira
 tion from the modern scattering amplitudes  program in flat space\, as
  well as the conformal bootstrap of phase transitions. After discussin
 g primordial scalar fluctuations\, I will also explain how the consist
 ent propagation of gravitational waves imposes further constraints on 
 the structure of spinning primordial correlators.
URL:https://www.physics.wisc.edu/events/?id=6329
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