The Case of the Disappearing (and Re-Appearing) Particle

Abstract A novel prediction is derived by the Two-State-Vector-Formalism (TSVF) for a particle superposed over three boxes. Under appropriate pre- and post-selections, and with tunneling enabled between two of the boxes, it is possible to derive not only one, but three predictions for three differen...

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Autores principales:	Yakir Aharonov, Eliahu Cohen, Ariel Landau, Avshalom C. Elitzur
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dd6a04c3d88e4bf1ba42ef1c12d9f706
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spelling	oai:doaj.org-article:dd6a04c3d88e4bf1ba42ef1c12d9f7062021-12-02T16:06:20ZThe Case of the Disappearing (and Re-Appearing) Particle10.1038/s41598-017-00274-w2045-2322https://doaj.org/article/dd6a04c3d88e4bf1ba42ef1c12d9f7062017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00274-whttps://doaj.org/toc/2045-2322Abstract A novel prediction is derived by the Two-State-Vector-Formalism (TSVF) for a particle superposed over three boxes. Under appropriate pre- and post-selections, and with tunneling enabled between two of the boxes, it is possible to derive not only one, but three predictions for three different times within the intermediate interval. These predictions are moreover contradictory. The particle (when looked for using a projective measurement) seems to disappear from the first box where it would have been previously found with certainty, appearing instead within the third box, to which no tunneling is possible, and later re-appearing within the second. It turns out that local measurement (i.e. opening one of the boxes) fails to indicate the particle’s presence, but subtler measurements performed on the two boxes together reveal the particle’s nonlocal modular momentum spatially separated from its mass. Another advance of this setting is that, unlike other predictions of the TSVF that rely on weak and/or counterfactual measurements, the present one uses actual projective measurements. This outcome is then corroborated by adding weak measurements and the Aharonov-Bohm effect. The results strengthen the recently suggested time-symmetric Heisenberg ontology based on nonlocal deterministic operators. They can be also tested using the newly developed quantum router.Yakir AharonovEliahu CohenAriel LandauAvshalom C. ElitzurNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yakir Aharonov Eliahu Cohen Ariel Landau Avshalom C. Elitzur The Case of the Disappearing (and Re-Appearing) Particle
description	Abstract A novel prediction is derived by the Two-State-Vector-Formalism (TSVF) for a particle superposed over three boxes. Under appropriate pre- and post-selections, and with tunneling enabled between two of the boxes, it is possible to derive not only one, but three predictions for three different times within the intermediate interval. These predictions are moreover contradictory. The particle (when looked for using a projective measurement) seems to disappear from the first box where it would have been previously found with certainty, appearing instead within the third box, to which no tunneling is possible, and later re-appearing within the second. It turns out that local measurement (i.e. opening one of the boxes) fails to indicate the particle’s presence, but subtler measurements performed on the two boxes together reveal the particle’s nonlocal modular momentum spatially separated from its mass. Another advance of this setting is that, unlike other predictions of the TSVF that rely on weak and/or counterfactual measurements, the present one uses actual projective measurements. This outcome is then corroborated by adding weak measurements and the Aharonov-Bohm effect. The results strengthen the recently suggested time-symmetric Heisenberg ontology based on nonlocal deterministic operators. They can be also tested using the newly developed quantum router.
format	article
author	Yakir Aharonov Eliahu Cohen Ariel Landau Avshalom C. Elitzur
author_facet	Yakir Aharonov Eliahu Cohen Ariel Landau Avshalom C. Elitzur
author_sort	Yakir Aharonov
title	The Case of the Disappearing (and Re-Appearing) Particle
title_short	The Case of the Disappearing (and Re-Appearing) Particle
title_full	The Case of the Disappearing (and Re-Appearing) Particle
title_fullStr	The Case of the Disappearing (and Re-Appearing) Particle
title_full_unstemmed	The Case of the Disappearing (and Re-Appearing) Particle
title_sort	case of the disappearing (and re-appearing) particle
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/dd6a04c3d88e4bf1ba42ef1c12d9f706
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The Case of the Disappearing (and Re-Appearing) Particle

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