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SUMMARY:Counting states in string theory: Kirk Lecture: - Anne Taormina (D
 urham University)
DTSTART:20220810T150000Z
DTEND:20220810T160000Z
UID:TALK177323@talks.cam.ac.uk
DESCRIPTION:In string theory\, the partition function captures information
  on the number of physical states at each energy level. This information i
 s encoded in the characters of certain infinite-dimensional algebras assoc
 iated with symmetries of the specific string model considered. After givin
 g a couple of introductory examples\, we will show how&nbsp\;a subtle mix 
 of conformal symmetry and supersymmetry on the string world sheet led to t
 he fortuitous discovery in 2010 of an intriguing phenomenon called `Mathie
 u Moonshine&rsquo\;\, which hints at the existence of a huge discrete symm
 etry whose role in string theory remains unclear.\n&nbsp\;
LOCATION:Seminar Room 1\, Newton Institute
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