2011
DOI: 10.1007/s11005-011-0480-2
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Quantum ’t Hooft Loops of SYM $${{\mathcal N}=4}$$ as Instantons of YM2 in Dual Groups SU(N) and SU(N)/ZN

Abstract: A relation between circular 1/2 BPS 't Hooft operators in 4d N = 4 SYM and instantonic solutions in 2d Yang-Mills theory (YM 2 ) has recently been conjectured. Localization indeed predicts that those 't Hooft operators in a theory with gauge group G are captured by instanton contributions to the partition function of YM 2 , belonging to representations of the dual group L G. This conjecture has been tested in the case G = U (N ) = L G and for fundamental representations. In this paper we examine this conjectur… Show more

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Cited by 4 publications
(3 citation statements)
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“…Normalization by the expectation value of the Wilson (3.20) brings this result into the full agreement with the string-theory calculation. Localization allows one to study much wider class of correlation functions involving Wilson loops of different shape [82,92], in higher representations of the gauge group [78], 't Hooft loops [78,93,94], correlators of two Wilson loops [83,84,95,85] as well as multi-point correlation functions [85].…”
Section: Operator Product Expansionmentioning
confidence: 99%
“…Normalization by the expectation value of the Wilson (3.20) brings this result into the full agreement with the string-theory calculation. Localization allows one to study much wider class of correlation functions involving Wilson loops of different shape [82,92], in higher representations of the gauge group [78], 't Hooft loops [78,93,94], correlators of two Wilson loops [83,84,95,85] as well as multi-point correlation functions [85].…”
Section: Operator Product Expansionmentioning
confidence: 99%
“…Under this map, on the 2d YM side we should extract only the perturbative, or zero-instanton, contribution. In fact, non-trivial instantons on the 2d side also have an interpretation in 4d: they correspond to turning on 1/2-BPS 't Hooft loop operators along a S 1 linked with the S 2 [24] (see also [27]). In this paper we will not consider 't Hooft loops and focus on Wilson loops and local operators.…”
Section: Review Of Supersymmetric Subsector and Relation To 2dmentioning
confidence: 99%
“…The correlation function of a Wilson loop and a local operator in this sector was computed in [23], giving support and generalizing the original conjecture of [25] for the correlator of a 1/2-BPS Wilson loop and a chiral primary (see also [26] for the study of the large R-charge limit of this correlator). In [24] [27], the exact results implied by the relation to 2d were also used to obtain some explicit tests of the S-duality symmetry of the N = 4 SYM theory.…”
Section: Introductionmentioning
confidence: 99%