Princeton University High Energy Theory Seminar

Yangians and other algebras you can find at boundaries and interfaces

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Meeting ID: 985 9550 4817
Passcode: 604268

Abstract: I will discuss protected sectors in the 4d N=4 SYM with the half-BPS boundary or interface. Algebraic structures of various levels of complexity appear in this context, such as U(g) (universal enveloping algebra), W(g,e) (fintie W-algebra), their quantum Hamiltonian reductions, and the Yangian (or rather its truncation). One can use the power of algebra, as well as integrability in the latter case, to solve for correlation functions. In particular, for an interface engineered by a pair of fivebranes, one can leverage connection to the inhomogeneous XXX spin chain to compute correlators quite explicitly.
Based on  2009.11197  and  2009.11198.

Date & Time

November 06, 2020 | 1:45pm


via ZOOM


Mykola Dedushenko

Speaker Affiliation

SCGP, Stony Brook