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Bit models of replica wormholes

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arxiv 2211.04513 v1 pith:KBNKXO33 submitted 2022-11-08 hep-th gr-qc

classification hep-thgr-qc
keywords modelsreplicawormholesblackholesaccordarisingcompatible
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We define bit models of evaporating black holes which incorporate the effects of replica wormholes. These enter as non-perturbative corrections to the gravitational inner product, arising from spacetime wormholes that connect replica black holes. The resulting models have exactly unitary evolution, predict measurements on Hawking radiation in accord with a Page curve for entropy, and are compatible with a smooth horizon for infalling observers.

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