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Reflected entropy in BCFTs on a black hole background

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arxiv 2311.17023 v1 pith:U54UDKJ6 submitted 2023-11-28 hep-th

Debarshi Basu , Himanshu Chourasiya , Vinayak Raj , Gautam Sengupta This is my paper · ORCID
classification hep-th
keywords entropyreflectedblackbackgroundbcftgeometryholeobtain
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abstract

We obtain the reflected entropy for bipartite mixed state configurations involving two disjoint and adjacent subsystems in two dimensional boundary conformal field theories (BCFT$_2$s) in a black hole background. The bulk dual is described by an AdS$_3$ black string geometry truncated by a Karch-Randall brane. The entanglement wedge cross section computed for this geometry matches with the reflected entropy obtained for the BCFT$_2$ verifying the holographic duality. In this context, we also obtain the analogues of the Page curves for the reflected entropy and investigate the behaviour of the Markov gap.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Probing the Black Hole Interior with Holographic Entanglement Entropy and the Role of AdS/BCFT Correspondence

    hep-th 2025-08 reject novelty 4.0 of 10

    The paper's central claim, that a Horndeski-gravity residual entropy -ξ/6 identifies smooth-interior microstates and firewalls, is an unsupported interpretation of previously derived formulas.

  2. Holographic Complexity as a Probe of Boundary Entropy in AdS/BCFT

    hep-th 2026-08 reject novelty 3.0 of 10

    Relative complexity in AdS/BCFT is claimed to equal boundary entropy log g divided by pi hbar, but the equality is built into the renormalization counterterm.

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