7 papers · 1 filter
Quiver Yangians as Coulomb branch algebras
Tiantai Chen, Wei Li
For a 3D N=4 gauge theory, turning on the -background in RxR deforms the Coulomb branch chiral ring into the quantum Coulomb branch algebra, generated by the 1/2-BPS mon…
Categories of Line Defects and Cohomological Hall Algebras
Davide Gaiotto, Nikita Grygoryev, Wei Li
Any four-dimensional Supersymmetric Quantum Field Theory with eight supercharges can be associated to a monoidal category of BPS line defects. Any Coulomb vacuum of such a theory c…
Generalized Bethe expansions of superconformal indices
Alejandro Cabo-Bizet, Wei Li
We show the existence of infinitely many Bethe expansions for general four dimensional superconformal theories. We then propose an analytic method to systematically obtain all the…
Structure of the chiral algebra
Matthias R. Gaberdiel, Wei Li
The chiral algebra of 4D SU super-Yang-Mills theory is an superconformal vertex operator algebra. We analyse the structure of this algebra by s…
AdS Quantum Gravity and Finite Chiral Primaries
Ji Hoon Lee, Wei Li
String theory on AdS S provides a well-studied realization of AdS/CFT holography, but its non-perturbative structure at finite $N…
Chiral algebra from worldsheet
Wei Li
The chiral algebra of a 4D superconformal field theory is a vertex operator algebra generated by the Schur subsector of the 4D theory and its rigid (yet rich) structure ha…