On the zoology of 2d N=(0, 2) dualities of gauge theories with antisymmetric matter

In this paper we investigate and propose new dualities involving 2d gauge theories with N = (0, 2) supersymmetry. In the first part of the paper we focus on SU(n) gauge theories with two antisymmetric chirals. The gauge theories are non-anomalous if we consider, in addition to such matter content, nf fundamental and na antifundamental chirals, provided the constraint nf + na = 4. By exploring the five possibile scenarios arising from this constraint we provide in each case evidences of a dual LG description, by matching the ’t Hooft anomalies and deriving the relation between the elliptic genera in terms of other more fundamental dualities. In the second part of the paper we provide a 4d origin for a gauge/LG duality already stated in the literature, that does not descend from any known s-confining duality. In the last part of the paper we focus on dualities for SU(n) and USp(2n) models with antisymmetric Fermi multiplets, obtained from dimensional reduction of 4d parent dualities.