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SUMMARY:Do We Have a Standard Model of Cosmology? - George Efstathiou (KIC
 C)
DTSTART:20220225T120000Z
DTEND:20220225T130000Z
UID:TALK170441@talks.cam.ac.uk
CONTACT:Please see programme below
DESCRIPTION:Observations of the cosmic microwave background radiation by t
 he European Space Agency’s Planck satellite have led to a standard model
  of cosmology with very precisely determined parameters. In this model\, k
 nown as LCDM\, structure in the Universe arose from quantum fluctuations t
 hat were stretched in scale during an early inflationary phase in the Univ
 erse’s history. At the present day most of the matter is cold and invisi
 ble\, but most of the energy is in an unusual form that is also dark and i
 nvisible. I will first discuss\, from a personal perspective\, how we got 
 to the LCDM model. I will then ask whether we have actually learned anythi
 ng\, given that the three key ingredients of the LCDM cosmology – inflat
 ion\, cold dark matter and dark energy – are not understood at a fundame
 ntal level. I will then speculate on whether there is likely to be a new p
 aradigm shift in cosmology within the next few years.
LOCATION:Hoyle Building Lecture Theatre (sign-up needed) + ONLINE - Detail
 s will be sent by email
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