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- W3105339710 abstract "We present a new duality between the F-terms of supersymmetric field theories defined in two-and four-dimensions respectively. The duality relates $ mathcal{N} = 2 $ super-symmetric gauge theories in four dimensions, deformed by an Ω-background in one plane, to $ mathcal{N} = left( {2,2} right) $ gauged linear σ-models in two dimensions. On the four dimensional side, our main example is $ mathcal{N} = 2 $ SQCD with gauge group G = SU(L) and N F = 2 L fundamental flavours. Using ideas of Nekrasov and Shatashvili, we argue that the Coulomb branch of this theory provides a quantization of the classical Heisenberg SL(2) spin chain. Agreement with the standard quantization via the Algebraic Bethe Ansatz implies the existence of an isomorphism between the chiral ring of the 4 d theory and that of a certain two-dimensional theory. The latter can be understood as the worldvolume theory on a surface operator/vortex string probing the Higgs branch of the same 4 d theory. We check the proposed duality by explicit calculation at low orders in the instanton expansion. One striking consequence is that the Seiberg-Witten solution of the 4 d theory is captured by a one-loop computation in two dimensions. The duality also has interesting connections with the AGT conjecture, matrix models and topological string theory where it corresponds to a refined version of the geometric transition." @default.
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- W3105339710 date "2011-10-01" @default.
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- W3105339710 title "Quantization of integrable systems and a 2d/4d duality" @default.
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- W3105339710 doi "https://doi.org/10.1007/jhep10(2011)077" @default.
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