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タイトル: Experimental demonstration of a quantum shutter closing two slits simultaneously.
著者: Okamoto, Ryo
Takeuchi, Shigeki  kyouindb  KAKEN_id
著者名の別形: 岡本, 亮
竹内, 繁樹
発行日: 14-Oct-2016
出版者: Springer Nature
誌名: Scientific reports
巻: 6
論文番号: 35161
抄録: The interference between two paths of a single photon at a double slit is widely considered to be the most paradoxical result of quantum theory. Here is a new interesting question to the phenomenon: can a single shutter simultaneously close two slits by effectively being in a superposition of different locations? Aharonov and Vaidman have shown that it is indeed possible to construct a quantum shutter that can close two slits and reflect a probe photon perfectly when its initial and final states are appropriately selected. Here we report the experimental demonstration of their proposal overcoming the difficulty to realize a 'quantum shutter' by employing photonic quantum routers. The reflectance ratio of 0. 61 ± 0. 027 surpasses the classical limit with 4. 1 standard deviation, shedding new light on the unusual physical properties of quantum operations. This experimental demonstration, where the strong measurement and non-local superposition seem co-existing, provides an alternative to weak measurements as a way to explore the nature of quantum physics.
記述: 一つの量子的なシャッターにより, 二つのスリットを同時に閉じることに成功. 京都大学プレスリリース. 2016-10-19.
著作権等: © The Author(s) 2016. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
URI: http://hdl.handle.net/2433/217023
DOI(出版社版): 10.1038/srep35161
PubMed ID: 27739465
関連リンク: http://www.kyoto-u.ac.jp/ja/research/research_results/2016/161014_1.html
出現コレクション:学術雑誌掲載論文等

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