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SUMMARY:The resurgence of the Large Charge expansion - Domenico Orlando (I
 ntituto Nazionale di Fisica Nucleare)
DTSTART:20221212T160000Z
DTEND:20221212T170000Z
UID:TALK193232@talks.cam.ac.uk
DESCRIPTION:The large charge approach allows to describe special sectors o
 f strongly-coupled systems. When another controlling parameter is present\
 , it is still useful because it allows to unveil interesting mathematical 
 structures and access previously unexplored parts of the spectrum. In this
  talk I will concentrate on the O(N) vector model in the large-N limit\, g
 ive a geometrical interpretation of the asymptotic expansion of the dimens
 ion of the lowest operator of fixed charge\, and use resurgence to resum t
 his expansion. The result suggests a still unexplored interplay between co
 nformal symmetry and resurgence and will lead to an intuitive interpretati
 on for the impressive agreement of the large-charge predictions with latti
 ce data also in the O(2) model case.
LOCATION:Seminar Room 1\, Newton Institute
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