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Shooting null geodesics into holographic spacetimes

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arxiv 2304.01936 v1 pith:MMI7VFLJ submitted 2023-04-04 hep-th gr-qc

Shunichiro Kinoshita , Keiju Murata , Daichi Takeda This is my paper · ORCID
classification hep-thgr-qc
keywords boundaryholographicbulknullpacketwavebackbehavior
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We find, in the AdS/CFT, a source on the boundary which generates one wave packet drawing a null geodesic inside the bulk. Once such a wave packet dives into the bulk, it comes back to the boundary after a specific time, at which the expectation value of the corresponding boundary operator finally stands up. Since this behavior strongly reflects the existence of the holographic spacetime, our technique will be helpful in identifying holographic materials.

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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. Boundary imprint of bulk causality

    hep-th 2025-01 conditional novelty 6.0 of 10

    Boundary hyperboloids formed by bulk lightcones satisfy a quadratic tangency condition equivalent to the null geodesic equation of an emergent bulk conformal metric.

  2. Probing Black Hole Thermal Effects in the Dual CFT via Wave Packets

    hep-th 2026-01 conditional novelty 5.0 of 10

    In the AdS3/BTZ holographic setup, the expectation value of a scalar primary in a bulk wave-packet state exhibits temperature-dependent exponential decay along the light cone, absent at zero temperature, while the ene...

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