Abstract
We give an explicit construction of the complete set of Cardy boundary states that respect the extended chiral algebra for symmetric product orbifolds. The states are labelled by a choice of seed theory boundary states as well as a choice of representations of the symmetric group. At large N, we analyze the BCFT data which is relevant for holography, namely the boundary entropy and the one-point functions of single-trace operators. In some cases, typical boundary states are compatible with a bulk description in terms of an End-of-the-World brane along with backreacted matter fields. We discuss the significance of these results for the AdS/BCFT correspondence.
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Belin, A., Biswas, S. & Sully, J. The spectrum of boundary states in symmetric orbifolds. J. High Energ. Phys. 2022, 123 (2022). https://doi.org/10.1007/JHEP01(2022)123
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DOI: https://doi.org/10.1007/JHEP01(2022)123