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arXiv · 2410.02685

Bootstrapping line defects in AdS$_3$/CFT$_2$

Gabriel Bliard·Diego H. Correa·Martín Lagares·Ignacio Salazar Landea
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Abstract

We study correlators of insertions along 1/2 BPS line defects in the holographic dual to type IIB string theory in $AdS_3 \times S^3 \times T^4$ with mixed Ramond-Ramond and Neveu Schwarz-Neveu Schwarz three-form flux. These defects break the symmetries of the bulk CFT$_2$ as $PSU(1,1|2)^2\times SO(4) \rightarrow PSU(1,1|2)\times SU(2)$, defining displacement and tilt supermultiplets. We focus on the two-, three- and four-point functions of these supermultiplets, which we compute using analytic conformal bootstrap up to next-to-leading order in their strong-coupling expansion. We obtain a bootstrap result that only depends on two OPE coefficients. We perform a Witten diagram check of the bootstrap result, obtaining an holographic interpretation of the two OPE coefficients that are not constrained by the bootstrap procedure.

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Gabriel Bliard, Diego H. Correa, Martín Lagares, Ignacio Salazar Landea. 2024-10-03. Bootstrapping line defects in AdS$_3$/CFT$_2$. https://arxiv.org/abs/2410.02685

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