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An E7 Surprise
Tudor Dimofte, Davide Gaiotto
We explore some curious implications of Seiberg duality for an SU(2) four-dimensional gauge theory with eight chiral doublets. We argue that two copies of the theory can be deforme…
Spectral Networks and Snakes
Davide Gaiotto, Gregory W. Moore, Andrew Neitzke
We apply and illustrate the techniques of spectral networks in a large collection of A_{K-1} theories of class S, which we call "lifted A_1 theories." Our construction makes contac…
Bootstrapping the superconformal index with surface defects
Davide Gaiotto, Leonardo Rastelli, Shlomo S. Razamat
The analytic properties of the N = 2 superconformal index are given a physical interpretation in terms of certain BPS surface defects, which arise as the IR limit of supersymmetric…
Spectral networks
Davide Gaiotto, Gregory W. Moore, Andrew Neitzke
We introduce new geometric objects called spectral networks. Spectral networks are networks of trajectories on Riemann surfaces obeying certain local rules. Spectral networks arise…
Irregular singularities in Liouville theory
Davide Gaiotto, Joerg Teschner
Motivated by problems arising in the study of N=2 supersymmetric gauge theories we introduce and study irregular singularities in two-dimensional conformal field theory, here Liouv…
Exceptional Indices
Davide Gaiotto, Shlomo S. Razamat
Recently a prescription to compute the superconformal index for all theories of class S was proposed. In this paper we discuss some of the physical information which can be extract…