WebAlice moving at velocity v can figure out that she's moving at velocity v! She does it is by sending out light rays in opposite directions around the circle, at the same time. If WebNov 20, 2024 · A quantum extremal island suggests that a region of spacetime is encoded in the quantum state of another system, like the encoding of the black hole interior in Hawking radiation. We study conditions for islands to appear in general spacetimes, with or without black holes. They must violate Bekenstein’s area bound in a precise sense, and the …
Rev. Mod. Phys. 93, 035002 (2024) - The entropy of …
WebSep 29, 2024 · Edgar Shaghoulian 1 Affiliation 1 Department of Physics, University of California, Santa Barbara, California 93106-9530, USA. PMID: 29341668 DOI: 10.1103/PhysRevLett.119.131601 Abstract I conjecture a high-temperature-low-temperature duality for conformal field theories defined on circle fibrations like S^{3} and its lens … WebJul 21, 2024 · The review shows how the method for computing gravitational fine-grained entropy, developed over the past 15 years, can be extended to capture the entropy of … ethical purpose meaning
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WebEdgar Shaghoulian, 2024-20 (Postdoc, U Penn) Sungwoo Hong, 2024-20 (Postdoc, Argonne and U Chicago) Kanato Goto, 2024-20 (Postdoc, RIKEN) Irene Valenzuela, … WebJul 3, 2024 · The large-N limit of asymptotically flat two-dimensional dilaton gravity coupled to N free matter fields provides a useful toy model for semiclassical black holes and the information paradox. Analyses of the asymptotic information flux as given by the entanglement entropy show that it follows the Hawking curve, indicating that information … WebMay 5, 2024 · The information paradox can be realized in anti-de Sitter spacetime joined to a Minkowski region. In this setting, we show that the large discrepancy between the von Neumann entropy as calculated by Hawking and the requirements of unitarity is fixed by including new saddles in the gravitational path integral. These saddles arise in the replica … ethical purpose of advertising