Testing the speed of “spooky action at a distance” in a tabletop experiment
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Pallotti, DK
Siciliani de Cumis, M
Dequal, D
Andrisani, A
Slussarenko, S
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Abstract
Nonlocality, probably the principal friction between Quantum Physics and Relativity, disturbed the physicists even more than realism since it looks to originate superluminal signalling, the Einsteinian “Spooky action at a distance”. From 2000 on, several tests to set lower bounds of the Spooky action at a distance velocity (cβt,max) have been performed. They are usually based on a Bell Test performed in km long and carefully balanced experimental setups to fix a more and more improved bound making some assumptions dictated by the experimental conditions. By exploiting advances in quantum technologies, we performed a Bell’s test with an improved bound in a tabletop experiment of the order of few minutes, thus being able to control parameters otherwise uncontrollable in an extended setup or in long lasting experiments.
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Scientific Reports
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13
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© The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
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Foundations of quantum mechanics
Classical physics
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Santamaria Amato, L; Pallotti, DK; Siciliani de Cumis, M; Dequal, D; Andrisani, A; Slussarenko, S, Testing the speed of “spooky action at a distance” in a tabletop experiment, Scientific Reports, 2023, 13, pp. 8201