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Nonlocal Position Changes of a Photon Revealed by Quantum Routers

Since its publication, Aharonov and Vaidman’s three-box paradox has undergone three major advances: i). A non-counterfactual scheme by the same authors in 2003 with strong rather than weak measurements for verifying the particle’s subtle presence in two boxes. ii) A realization of the latter by Okam...

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Autores principales: Elitzur, Avshalom C., Cohen, Eliahu, Okamoto, Ryo, Takeuchi, Shigeki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5955892/
https://www.ncbi.nlm.nih.gov/pubmed/29769645
http://dx.doi.org/10.1038/s41598-018-26018-y
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author Elitzur, Avshalom C.
Cohen, Eliahu
Okamoto, Ryo
Takeuchi, Shigeki
author_facet Elitzur, Avshalom C.
Cohen, Eliahu
Okamoto, Ryo
Takeuchi, Shigeki
author_sort Elitzur, Avshalom C.
collection PubMed
description Since its publication, Aharonov and Vaidman’s three-box paradox has undergone three major advances: i). A non-counterfactual scheme by the same authors in 2003 with strong rather than weak measurements for verifying the particle’s subtle presence in two boxes. ii) A realization of the latter by Okamoto and Takeuchi in 2016. iii) A dynamic version by Aharonov et al. in 2017, with disappearance and reappearance of the particle. We now combine these advances together. Using photonic quantum routers the particle acts like a quantum “shutter.” It is initially split between Boxes A, B and C, the latter located far away from the former two. The shutter particle’s whereabouts can then be followed by a probe photon, split in both space and time and reflected by the shutter in its varying locations. Measuring the former is expected to reveal the following time-evolution: The shutter particle was, with certainty, in boxes A+C at t(1), then only in C at t(2), and finally in B+C at t(3). Another branch of the split probe photon can show that boxes A+B were empty at t(2). A Bell-like theorem applied to this experiment challenges any alternative interpretation that avoids disappearance-reappearance in favor of local hidden variables.
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spelling pubmed-59558922018-05-21 Nonlocal Position Changes of a Photon Revealed by Quantum Routers Elitzur, Avshalom C. Cohen, Eliahu Okamoto, Ryo Takeuchi, Shigeki Sci Rep Article Since its publication, Aharonov and Vaidman’s three-box paradox has undergone three major advances: i). A non-counterfactual scheme by the same authors in 2003 with strong rather than weak measurements for verifying the particle’s subtle presence in two boxes. ii) A realization of the latter by Okamoto and Takeuchi in 2016. iii) A dynamic version by Aharonov et al. in 2017, with disappearance and reappearance of the particle. We now combine these advances together. Using photonic quantum routers the particle acts like a quantum “shutter.” It is initially split between Boxes A, B and C, the latter located far away from the former two. The shutter particle’s whereabouts can then be followed by a probe photon, split in both space and time and reflected by the shutter in its varying locations. Measuring the former is expected to reveal the following time-evolution: The shutter particle was, with certainty, in boxes A+C at t(1), then only in C at t(2), and finally in B+C at t(3). Another branch of the split probe photon can show that boxes A+B were empty at t(2). A Bell-like theorem applied to this experiment challenges any alternative interpretation that avoids disappearance-reappearance in favor of local hidden variables. Nature Publishing Group UK 2018-05-16 /pmc/articles/PMC5955892/ /pubmed/29769645 http://dx.doi.org/10.1038/s41598-018-26018-y Text en © The Author(s) 2018 Open Access 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Elitzur, Avshalom C.
Cohen, Eliahu
Okamoto, Ryo
Takeuchi, Shigeki
Nonlocal Position Changes of a Photon Revealed by Quantum Routers
title Nonlocal Position Changes of a Photon Revealed by Quantum Routers
title_full Nonlocal Position Changes of a Photon Revealed by Quantum Routers
title_fullStr Nonlocal Position Changes of a Photon Revealed by Quantum Routers
title_full_unstemmed Nonlocal Position Changes of a Photon Revealed by Quantum Routers
title_short Nonlocal Position Changes of a Photon Revealed by Quantum Routers
title_sort nonlocal position changes of a photon revealed by quantum routers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5955892/
https://www.ncbi.nlm.nih.gov/pubmed/29769645
http://dx.doi.org/10.1038/s41598-018-26018-y
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