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arXiv · 2104.00052

Islands in the Stream of Hawking Radiation

Timothy J. Hollowood·S. Prem Kumar·Andrea Legramandi·Neil Talwar
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Abstract

We consider the island formula for the entropy of subsets of the Hawking radiation in the adiabatic limit where the evaporation is very slow. We find a simple concrete `on-shell' formula for the generalized entropy which involves the image of the island out in the stream of radiation, the `island in the stream'. The resulting recipe for the entropy allows us to calculate the quantum information properties of the radiation and verify various constraints including the Araki-Lieb inequality and strong subadditivity.

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Timothy J. Hollowood, S. Prem Kumar, Andrea Legramandi, Neil Talwar. 2021-03-31. Islands in the Stream of Hawking Radiation. https://doi.org/10.1007/jhep11(2021)067

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