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Comments on Holographic Entanglement Entropy in TT Deformed CFTs

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arxiv 1904.04408 v1 pith:KAPBJQVC submitted 2019-04-09 hep-th gr-qc

Chitraang Murdia , Yasunori Nomura , Pratik Rath , Nico Salzetta This is my paper · ORCID
classification hep-thgr-qc
keywords formulageneralholographicholographydeformedrecenttheoriesunderstanding
verification ladder T0 review T1 audit T2 compute T3 formal
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The Ryu-Takayanagi (RT) formula has been a key ingredient in our understanding of holography. Recent work on TT deformations has also boosted our understanding of holography away from the conformal boundary of AdS. In this short note, we aim to refine some recent work demonstrating the success of the RT formula in TT deformed theories. We emphasize general arguments that justify the use of the RT formula in general holographic theories that obey a GKPW-like dictionary. In doing so, we clarify subtleties related to holographic counterterms and discuss the implications for holography in general spacetimes.

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Cited by 2 Pith papers

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  1. Mixed state entanglement in deformed field theory at finite temperature

    hep-th 2024-12 conditional novelty 5.0 of 10

    For a TTbar-deformed CFT at finite temperature, the EWCS and holographic entanglement negativity both decrease as the deformation parameter grows, just as they do when temperature increases.

  2. Bridging Boundaries: $T\bar{T}$, Double Holography, and Reflected Entropy

    hep-th 2024-11 conditional novelty 5.0 of 10

    Reflected entropy in T-bar-T-deformed AdS3/BCFT2 computed via island and defect extremal surface prescriptions agrees at leading order in the cutoff, and its Page curves show a discontinuity at the Page time.

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