Euclidean black saddles and \(\mathrm{AdS}_4\) black holes

DOI10.1007/JHEP10(2020)073zbMATH Open1456.83038arXiv2006.01148WikidataQ114232498 ScholiaQ114232498MaRDI QIDQ2657750

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Publication date: 14 March 2021

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Abstract: We find new asymptotically locally AdS${}_4$ Euclidean supersymmetric solutions of the STU model in four-dimensional gauged supergravity. These "black saddles" have an $S^{1}imesSigm{a}_{mathfrakg}$ boundary at asymptotic infinity and cap off smoothly in the interior. The solutions can be uplifted to eleven dimensions and are holographically dual to the topologically twisted ABJM theory on $S^{1}imesSigm{a}_{mathfrakg}$. We show explicitly that the on-shell action of the black saddle solutions agrees exactly with the topologically twisted index of the ABJM theory in the planar limit for general values of the magnetic fluxes, flavor fugacities, and real masses. This agreement relies on a careful holographic renormalization analysis combined with a novel UV/IR holographic relation between supergravity parameters and field theory sources. The Euclidean black saddle solution space contains special points that can be Wick-rotated to regular Lorentzian supergravity backgrounds that correspond to the well-known supersymmetric dyonic AdS${}_4$ black holes in the STU model.

Full work available at URL: https://arxiv.org/abs/2006.01148

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