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SUMMARY:Ahsan Khan (IAS)
DTSTART:20231214T193000Z
DTEND:20231214T203000Z
DTSTAMP:20260423T005839Z
UID:nhetc/97
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/nhetc/97/">H
 olomorphic Surface Defects in 4d Chern-Simons Theory and the Bethe Equatio
 ns</a>\nby Ahsan Khan (IAS) as part of NHETC Seminar\n\n\nAbstract\nThere 
 is a remarkable relationship between integrable systems in 1+1 dimensions 
 (such as the Heisenberg spin chain) and a certain quantum gauge theory in 
 four dimensions often referred to as four-dimensional Chern-Simons Theory.
  I will review aspects of this relationship and then describe some newer r
 esults involving holomorphic surface defects in this gauge theory and thei
 r relationship to the Bethe equations governing spin chains.\n
LOCATION:https://researchseminars.org/talk/nhetc/97/
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