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We discuss the AdS_3/CFT_2 duality of a heterotic three-charge model with(0,4) target space supersymmetry. The worldsheet theory for heterotic stringson the AdS_3 x S^3/Z_N x T^4 near-horizon geometry was constructed by Kutasov,Larsen and Leigh in [hep-th/9812027]. We propose that the dual conformal fieldtheory is given by a two-dimensional (0,4) sigma model arising on the Higgsbranch of an orbifolded ADHM model. As a non-trivial consistency check of thecorrespondence, we find that the left- and right-moving central charges of theinfrared conformal field theory agree with those predicted by the worldsheetmodel. Moreover, using the entropy function formalism, we show that tonext-to-leading order the central charge can also be obtained from analpha'-corrected supergravity theory.

Heterotic AdS_3/CFT_2 duality with (0,4) spacetime supersymmetry