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UID:2458@qft.physik.hu-berlin.de
DTSTART;TZID=Europe/Berlin:20251210T133000
DTEND;TZID=Europe/Berlin:20251210T143000
DTSTAMP:20251208T102947Z
URL:https://qft.physik.hu-berlin.de/next-seminars/paul-ryan-desy/
SUMMARY:Paul Ryan (DESY) - 
DESCRIPTION:Speaker: Paul Ryan\n\nTitle: High-Rank Structure Constants and 
 Separation of Variables in Planar N=4 SYM\n\nAbstract: Integrability in pl
 anar N=4 SYM has led to the development of the cutting-edge Quantum Spectr
 al Curve (QSC)\, a Riemann-Hilbert problem for a handful of Q-functions wh
 ich encode the spectrum of conformal dimensions. With the QSC the planar N
 =4 SYM spectral problem is solved - anyone with a laptop can compute the d
 imension of any operator at any coupling. In a handful of examples\, struc
 ture constants have also been shown to simplify enormously when expressed 
 in terms of the QSC Q-functions\, but no systematic derivation is availabl
 e even at tree level. Using recent advancements in the Separation of Varia
 bles program for high-rank integrable systems I will explain how to system
 atically derive the Q-function representation for tree-level structure con
 stants in the SU(4) sector. Based on upcoming work with T. Bargheer\, C. B
 ercini\, and G. Lefundes.
CATEGORIES:Pizza Seminars
LOCATION:Room 1.221\, IRIS building\, Zum großen Windkanal 6\, Berlin\, 12
 489\, Germany
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Zum großen Windkanal 6\, B
 erlin\, 12489\, Germany;X-APPLE-RADIUS=100;X-TITLE=Room 1.221\, IRIS build
 ing:geo:0,0
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