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SUMMARY:Surface defects and integrability - Adam Chalabi (Università degl
 i Studi di Torino)
DTSTART:20251015T090000Z
DTEND:20251015T103000Z
UID:TALK239026@talks.cam.ac.uk
DESCRIPTION:Integrability of planar N=4 super-Yang-Mills (SYM) theory enab
 les exact computations of unprotected observables\, even with the insertio
 n of certain extended operators. While integrability techniques have been 
 successfully applied to some domain walls and line defects\, it is an open
  question whether there are any integrable surface defects in N=4 SYM theo
 ry. In this talk\, I will examine a class of 1/2-BPS surface defects known
  as Gukov-Witten defects. I will argue that these defects are generically 
 not integrable but they are likely to become integrable at a corner in par
 ameter space. I will present closed-form factorised expressions for leadin
 g-order one-point functions of unprotected scalar operators\, hinting at t
 he existence of all-loop formulas at this special point.
LOCATION:Seminar Room 1\, Newton Institute
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