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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:4
UID:UW-Physics-Event-4921
DTSTART:20181019T190000Z
DTEND:20181019T202500Z
DTSTAMP:20260422T071625Z
LAST-MODIFIED:20181012T170302Z
LOCATION:5310 Chamberlin Hall
SUMMARY:Consistency relations in multi-field inflation\, Theory Semina
 r (High Energy/Cosmology)\, Jinn-Ouk Gong\, KASI
DESCRIPTION:The consequences of spatial coordinate transformation in m
 ulti-field inflation are studied. Among the spontaneously broken de Si
 tter isometries\, only dilatation in the comoving gauge preserves the 
 form of the metric and thus results in quantum-protected Slavnov-Taylo
 r identities. The corresponding consistency relations between correlat
 ion functions of cosmological perturbations are derived in two differe
 nt ways\, by the connected and one-particle-irreducible Green's functi
 ons. The lowest-order consistency relations are explicitly given\, and
  even in multi-field inflation the consistency relations in the soft l
 imit are independent of the detail of the matter sector.
URL:https://www.physics.wisc.edu/events/?id=4921
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