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29 papers
Spin chains for ADE quiver theories
Jarryd Bath, Konstantinos Zoubos
The spectral problem of four-dimensional superconformal quiver gauge theories can be mapped to one-dimensional spin chains with restricted Hilbert spaces, where the composition of…
On isomorphisms between quiver Yangians
Vishnu Jejjala, Dumisani Nxumalo, Konstantinos Zoubos
Quiver Yangians are infinite-dimensional algebras capturing the BPS structure of a large class of supersymmetric models. Quiver theories related by Seiberg duality are expected to…
Hidden Symmetries of 4D N=2 Gauge Theories
Hanno Bertle, Elli Pomoni, Xinyu Zhang +1
We study the global symmetries of the -orbifold of N=4 Super-Yang-Mills theory and its marginal deformations. The process of orbifolding to obtain an N=2 theory would…
Free fermions, neutrality and modular transformations
Mbavhalelo Mulokwe, Konstantinos Zoubos
With a view towards higher-spin applications, we study the partition function of a free complex fermion in 2d CFT, restricted to the neutral (zero fermion number) sector. This rest…
Dynamical Spin Chains in 4D SCFTs
Elli Pomoni, Randle Rabe, Konstantinos Zoubos
This is the first in a series of papers devoted to the study of spin chains capturing the spectral problem of 4d SCFTs in the planar limit. At one loop and in the q…
Marginal deformations and quasi-Hopf algebras
Hector Dlamini, Konstantinos Zoubos
We establish the existence of a quasi-Hopf algebraic structure underlying the Leigh-Strassler N=1 superconformal marginal deformations of the N=4 Super-Yang-Mills theory. The scala…