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SUMMARY:The Cosmological Tree Theorem - Santiago Agui-Salcedo\, University
  of Cambridge
DTSTART:20231201T130000Z
DTEND:20231201T140000Z
UID:TALK209221@talks.cam.ac.uk
CONTACT:Xi Tong
DESCRIPTION:In recent years\, there has been an increasing interest in the
  interplay between amplitudes and cosmological correlators\, particularly 
 in how amplitudes techniques can constrain cosmological correlators. In th
 is talk\, I will give an overview of the formalism of the wavefunction of 
 the universe and how it relates to cosmological correlators. We will focus
  on how a new set of cutting rules\, derived from causality\, explains the
  analytic structure of wavefunction coefficients. These cutting rules furt
 her constrain the analytic structure of cosmological correlators\, making 
 explicit the absence of a particular kind of singularities. Finally\, I wi
 ll address future research in the rich interplay between amplitudes and co
 smology.
LOCATION:Potter room/Zoom
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