Black hole information recovery from gravitational waves
arXiv:2211.13736 · doi:10.1088/1361-6382/acc511
Abstract
We study the classical and quantum black hole information in gravitational waves from a black hole's history. We review the necessary concepts regarding quantum information in many-body systems to motivate information retrieval and content in gravitational waves. We then show the first step in an optimal information retrieval strategy is to search for information in gravitational waves, compared to searching for correlations in Hawking radiation. We argue a large portion of the information of the initial collapsing state may be in the gravitational waves. Using the Zerilli equation for particles falling radially into Schwarzschild black holes, we then describe a method to retrieve full classical information about infalling sources, including masses, infall times and angles.
arXiv comment26 pages, 4 figures, 1 table, 1 appendix, Class. Quantum Grav (2023)
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