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SUMMARY:Non-Compact Integrable Spin Chains and Feynman Integrals [FOR Virt
 ual Seminar]
DTSTART:20250521T090000Z
DTEND:20250521T110000Z
DTSTAMP:20260826T165900Z
UID:indico-event-923@indico.hiskp.uni-bonn.de
DESCRIPTION:Speakers: Gwenael Ferrando (BCTP)\n\nThe fishnet CFT and its g
 eneralisations are characterised by chiral interactions that severely rest
 rict the set of allowed planar Feynman diagrams. Many observables admit a 
 perturbative expansion with at most one diagram per order\; consequently\,
  integrability techniques developed to solve the theories can be used to c
 ompute individual Feynman integrals. I will begin with a brief overview of
  the CFTs and of these integrability techniques\, which are associated wit
 h non-compact spin chains. I will then focus on the method of separation o
 f variables\, and explain how it applies to the computation of some classe
 s of Feynman integrals. Though the technique has been developed in arbitra
 ry dimension\, the most impressive results were obtained for four-point in
 tegrals in dimensions 2 and 4. In the last part of the talk\, I will prese
 nt preliminary results for higher-point\, one-dimensional integrals.\n\nht
 tps://indico.hiskp.uni-bonn.de/event/923/
URL:https://indico.hiskp.uni-bonn.de/event/923/
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