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SUMMARY:Resurgence of the cusp anomalous dimension - Daniele Dorigoni (DES
 Y)
DTSTART:20150528T120000Z
DTEND:20150528T130000Z
UID:TALK59325@talks.cam.ac.uk
CONTACT:Godazgar
DESCRIPTION:I will revisit the strong coupling limit of the cusp anomalous
 \ndimension in planar N = 4 super Yang-Mills theory. It is known that\nthe
  strong coupling expansion is asymptotic and non-Borel summable. As\na con
 sequence\, the cusp anomalous dimension receives non-perturbative\ncorrect
 ions at strong coupling. I will analyze its resurgent aspect:\nthe perturb
 ative and non-perturbative parts are closely interrelated.\nSolving the Be
 isert- Eden-Staudacher equation systematically analyzing\nin detail the la
 rge order behavior in the perturbative strong coupling\nexpansion will sho
 w that the non-perturbative information is indeed\nencoded there. An ambig
 uity of (lateral) Borel resummations is\nprecisely canceled by the contrib
 utions from the perturbative and\nnon-perturbative sectors. 
LOCATION:Potter Room (first floor\, Pav. B)
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