Warped $Ad{S}_2$ and $SU(1,1|4)$ symmetry in Type IIB

Abstract

We investigate the existence of solutions with 16 supersymmetries to Type IIB supergravity on a spacetime of the form $Ad{S}_2\times S^5\times S^1$ warped over a two-dimensional Riemann surface $\Sigma$. The existence of the Lie superalgebra $SU(1,1|4)\subset PSU(2,2|4)$, whose maximal bosonic subalgebra is $SO(2,1)\oplus SO(6)\oplus SO(2)$, motivates the search for half-BPS solutions with this isometry that are asymptotic to $Ad{S}_5\times S^5$. We reduce the BPS equations to the Ansatz for the bosonic fields and supersymmetry generators compatible with these symmetries, then show that the only non-trivial solution is the maximally supersymmetric solution $Ad{S}_5\times S^5$. We argue that this implies that no solutions exist for fully back-reacted D7 probe or D7/D3 intersecting branes whose near-horizon limit is of the form $Ad{S}_2\times S^5\times S^1\times \Sigma$.

arXiv comment25 pages; v3: conclusion added, plus comments in Sections 2-4

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• Holographic description of SCFT${}_5$ compactifications
• New AdS${}_2$ supergravity duals of 4d SCFTs with defects
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• New AdS${}_3$/CFT${}_2$ pairs in massive IIA with $(0,4)$ and $(4,4)$ supersymmetries
• Exact solutions to complex Type IIB supergravity for complex superalgebra $F(4)$ and its real forms