BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Gwenael Ferrando (Ecole Normale Superieure) DTSTART:20200611T140000Z DTEND:20200611T160000Z DTSTAMP:20260423T040216Z UID:LIJC/6 DESCRIPTION:Title: Fis hnet CFT: TBA and Non-compact Spin Chain\nby Gwenael Ferrando (Ecole N ormale Superieure) as part of London Integrability Journal Club\n\n\nAbstr act\nThe fishnet CFT is a non-unitary CFT of two matrix complex scalar fie lds interacting via a single quartic potential. The chiral nature of the i nteraction strongly constrains the Feynman diagrams arising at each order in perturbation theory\, those that survive are of fishnet type. In this t alk\, I will present the TBA equations for the conformal dimensions of mul ti-magnon local operators in this theory. I will emphasize the need to dia gonalize suitable graph-building operators in order to determine the asymp totic data\, dispersion relation and S matrix\, on which the TBA relies. A dual version of the TBA equations\, relating D-dimensional graphs to two- dimensional sigma models\, will also be examined. The last part of the tal k will be devoted to the presentation of the underlying non-compact spin c hain and of additional results regarding diagonalization of graph-building operators.\n LOCATION:https://researchseminars.org/talk/LIJC/6/ END:VEVENT END:VCALENDAR