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Traversable wormholes in AdS and bounds on information transfer

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arxiv 1907.13140 v2 pith:ZGWE5AZA submitted 2019-07-30 hep-th

classification hep-th
keywords informationwormholeradiussentblackholeshorizonnumber
verification ladder T0 review T1 audit T2 compute T3 formal
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We analyze the amount of information that can be sent through the traversable wormholes of Gao, Jafferis, and Wall. Although we find that the wormhole is open for a proper time shorter than the Planck time, the transmission of a signal through the wormhole can sometimes remain within the semiclassical regime. For black holes with horizons of order the AdS radius, information cannot be reliably sent through the wormhole. However, black holes with horizon radius much larger than the AdS radius do allow for the transmission of a number of quanta of order the horizon area in AdS units. More information can be sent through the wormhole by increasing the number of light fields contributing to the negative energy. Our bulk computations agree with a boundary analysis based on quantum teleportation.

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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. Simple Perturbatively Traversable Wormholes from Bulk Fermions

    hep-th 2019-08 conditional novelty 6.0 of 10

    A Weyl fermion's quantum stress-energy on a Z2 quotient of rotating BTZ times a circle gives a negative averaged null energy, making the wormhole traversable.

  2. Traversable Asymptotically Flat Wormholes with Short Transit Times

    hep-th 2019-08 conditional novelty 6.0 of 10

    Quantum back-reaction from cosmic-string fluctuations can make a non-extremal charged wormhole traversable for early signals, with transit time d plus logarithmic terms, approaching the minimum allowed in higher dimensions.

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