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The quiver approach to the BPS spectrum of a 4d N=2 gauge theory
Sergio Cecotti
We present a survey of the computation of the BPS spectrum of a general four-dimensional N=2 supersymmetric gauge theory in terms of the Representation Theory of quivers with super…
Infinitely many N=2 SCFT with ADE flavor symmetry
Sergio Cecotti, Michele Del Zotto
We present evidence that for each ADE Lie group G there is an infinite tower of 4D N=2 SCFTs, which we label as D(G,s) (with s a positive integer), having (at least) flavor symmetr…
4d N=2 Gauge Theories and Quivers: the Non-Simply Laced Case
Sergio Cecotti, Michele Del Zotto
We construct the BPS quivers with superpotential for the 4d N=2 gauge theories with non-simply laced Lie groups (B_n, C_n, F_4 and G_2). The construction is inspired by the BIKMSV…
Half--Hypers and Quivers
Sergio Cecotti, Michele Del Zotto
We study systematically the BPS spectra of N=2 SYM coupled to half--hypermultiplets, the basic example being E_7 SYM coupled to a half--hyper in the 56 irrepr. In order to do this,…
Categorical Tinkertoys for N=2 Gauge Theories
Sergio Cecotti
In view of classification of the quiver 4d N=2 supersymmetric gauge theories, we discuss the characterization of the quivers with superpotential (Q,W) associated to a N=2 QFT which…