Particle Physics Seminar: Structure Constants of Cusp Operators and Integrability - Excited States and Quantum Spectral Curve

Tom Yahav

26 December 2019, 10:00 
Shenkar Building, Melamed Hall 006 
Particle Physics Seminar

Abstract:

I review briefly some core results in Conformal Field Theory (CFT), and specifically the "Operator-State Correspondence".

I also present the subject of Wilson lines in gauge theories and Wilson lines with cusps. 

Wilson lines with cusps give rise to an analogy with correlation functions in CFT and to a generalized notion of  "Non Local Operator-State Correspondence".

I will then review the concept of spin chain intergrability and its generalization to the Quantum Spectral Curve (QSC) method.

Finally, I give an overview of main results, given in previous papers and in my M.Sc work, 

on the simplification one achieves when expressing cusp Wilson loops in terms of the QSC main quantities knows as Q-functions, even at strong coupling.

 

 

 

Seminar Organizers: Prof. Erez Etzion & Dr. Liron Barak

 

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