Claim that the proper application of holographic entanglement entropy to the discussion of Bekenstein-Hawking entropy resolves the apparent black hole information paradox:
Geoff Penington, Stephen Shenker, Douglas Stanford, Zhenbin Yang, Replica wormholes and the black hole interior, J. High Energ. Phys. 2022 205 (2022) [doi:10.1007/JHEP05(2020)013, arXiv:1911.11977]
Ahmed Almheiri, Thomas Hartman, Juan Maldacena, Edgar Shaghoulian, Amirhossein Tajdini, Replica Wormholes and the Entropy of Hawking Radiation, J. High Energ. Phys. 2020 13 (2020) [doi:10.1007/JHEP05(2020)013, arXiv:1911.12333]
Review aimed at readers with minimal background:
See also:
Anna Karlsson, Concerns about the replica wormhole derivation of the island conjecture (arXiv:2101.05879)
Harvendra Singh, Islands and Icebergs contribute nothing to the Page curve (System with a symmetrical bath) [arXiv:2210.13970]
Argument that the would-be proof of the island conjecture secretly works only for massive gravity:
Hao Geng, Andreas Karch, Massive Islands, J. High Energ. Phys. 2020 121 (2020) [doi:10.1007/JHEP09(2020)121, arXiv:2006.02438]
Hao Geng, Andreas Karch, Carlos Perez-Pardavila, Suvrat Raju, Lisa Randall, Marcos Riojas, Sanjit Shashi, Inconsistency of islands in theories with long-range gravity, J. High Energ. Phys. 2022 182 (2022) [doi:10.1007/JHEP01(2022)182]
Hao Geng, Graviton Mass and Entanglement Islands in Low Spacetime Dimensions [arXiv:2312.13336]
reviewed in:
and discussion of what to do about this problem:
Claim that the whole argument relies on the false assumption that the split property holds for quantum gravity:
Review in:
Nirmalya Kajuri, Of Islands, Holograms and Saving Quantum Physics From a Black Hole Paradox, Science – The Wire (Nov 2022)
$[\ldots]$ a few sceptics have argued that while the calculations are correct, they don’t help resolve the black hole information-loss paradox. The troubles stem from the reservoir attached to the anti-de Sitter universe. The physicists who authored the island papers assumed that gravity stopped at the boundary of the anti-de Sitter space and didn’t enter the reservoir. This is not an innocuous assumption. $[\ldots]$ The key takeaway is that the island way to recover information and save unitarity works perfectly well – if you slightly modify Einstein’s theory of gravity. These criticisms have been around for some two years now, and physicists are yet to resolve them in print. $[\ldots]$ physicists continue to publish papers by the hundreds about the entanglement islands but few attempt to answer whether the islands are compatible with the Einsteinian gravity of our universe. $[\ldots]$
See also:
Saskia Demulder, Alessandra Gnecchi, Ioannis Lavdas, Dieter Lüst, Islands and Light Gravitons in type IIB String Theory [arXiv:2204.03669]
Emil Martinec: “Thus far, picturesque evocations of quantum wormholes remain largely just that – picturesque evocations.” (2nd Nov 2022)
Argument that discussion of the issue in the toy example of 2d JT gravity does not actually generalize to higher dimensions:
Debate between a proponent and a critic :
Last revised on March 10, 2024 at 10:06:08. See the history of this page for a list of all contributions to it.