Janus on the brane

DOI10.1007/JHEP07(2020)243zbMATH Open1451.81335arXiv2003.12080OpenAlexW3105689564WikidataQ125923781 ScholiaQ125923781MaRDI QIDQ2215455

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Publication date: 11 December 2020

Published in: (Search for Journal in Brave)

Abstract: We present a non-supersymmetric deformation of probe branes describing conformal defects of codimension two in AdS/CFT. The worldvolume of the probe branes is deformed from $Ad{S}_{p}imes{S}^1$ embedded in an $Ad{S}_{p+2}imesmathcal{M}^{D-p-2}$ background to an embedding of Janus form, which uses an $Ad{S}_{p-1}$ slicing of $Ad{S}_p$ and in which the brane bends along the slicing coordinate. In field theory terms this realizes conformal interfaces on codimension-two defects. We discuss these "Janus on the brane" solutions for $Ad{S}_{3}imes{S}^1$ D3-branes in the $Ad{S}_{5}imes{S}^5$ solution of Type IIB, realizing interfaces on surface defects in $mathcalN=4$ SYM, and show that similar solutions exist for probe branes in $Ad{S}_{p+2}imes{S}^{9-p}$ vacua of M-theory and in the $Ad{S}_{6}imes{S}^4$ solution of massive Type IIA.

Full work available at URL: https://arxiv.org/abs/2003.12080

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