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SUMMARY:The story of a simple universe - Enrico Pajer\, DAMTP
DTSTART:20190130T141500Z
DTEND:20190130T151500Z
UID:TALK117019@talks.cam.ac.uk
CONTACT:Francesca Chadha-Day
DESCRIPTION:The solution of the laws of nature known as "the universe" dis
 plays an astonishing simplicity. The story of everything we have ever obse
 rved on cosmological distances\, from atoms to light\, from Dark forms of 
 energy to spacetime itself\, can be reduced in a precise and predictive wa
 y to a single function of space: the primordial perturbation. At the quant
 um mechanical level\, this perturbation is the initial wave function of th
 e universe and appears to be described by simply two numbers. After critic
 ally reviewing how inflation attempts to accounts for this remarkable fact
 \, I will present new predictions that will challenge or confirm our curre
 nt standard cosmological model in the next generations of cosmological obs
 ervations. In particular\, I will discuss cosmological soft theorems\, the
  related adiabatic modes and the emergence of a new hierarchy in physics.
LOCATION:MR2\, Centre for Mathematical Sciences
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