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SUMMARY:A Stochastic Gravitational Wave Background - Ruth Durrer (Universi
 ty of Geneva)
DTSTART:20260216T130000Z
DTEND:20260216T140000Z
UID:TALK242623@talks.cam.ac.uk
CONTACT:Gonzalo Villa
DESCRIPTION:Gravitational waves (GWs) have a very weak absorption cross se
 ction. This makes them difficult to observe on the one hand\, but it  is a
 lso for this reason they carry pristine information from their generation 
 mechanism. Their observation may allow  glimpses  back to the highest reds
 hifts and energies in the Universe. \n\nAfter a brief introduction to the 
 significance of the observation of a stochastic gravitational wave backgro
 und\, I shall  concentrate on two possibilities: Generating gravitational 
 waves from violent processes in the post-inflationary Universe and generat
 ing them during inflation. I shall show that in both cases different unive
 rsal GW spectra are generated. I shall also discuss what we may learn from
  their observation.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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