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SUMMARY:The Surprising Simplicity of Scattering Amplitudes - Jacob Bourjai
 ly\, Niels Bohr Institute
DTSTART:20190522T131500Z
DTEND:20190522T141500Z
UID:TALK123535@talks.cam.ac.uk
CONTACT:Francesca Chadha-Day
DESCRIPTION:Quantum field theory is the modern manifestation of "force equ
 als mass times acceleration": it is the underlying\, mathematical framewor
 k in which understand and describe physical laws—from the most fundament
 al to the merely effective and approximate. \n\nWhile the foundations of t
 he subject have been in place for more than a half-century\, the way we un
 derstand\, teach\, and use quantum field theory is rapidly changing—fuel
 ed by a desire to explain an embarrassing disconnect between the difficult
 y of making predictions for experiment and the near-universal simplicity o
 f the predictions we ultimately make. \n\nIn this talk\, I illustrate the 
 ubiquity and depth of this simplicity\, and describe some of the recent pr
 ogress that has been made to make it less surprising (to the theorists doi
 ng the calculations). Much of these developments have been made in the con
 text of especially simple quantum field theories\, but the lessons learned
  often have much wider applications. I outline several of these recent dev
 elopments\, and discuss the concrete roads ahead.
LOCATION:MR2\, Centre for Mathematical Sciences
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