Nonlocal single particle steering generated through single particle entanglement

Abstract In 1927, at the Solvay conference, Einstein posed a thought experiment with the primary intention of showing the incompleteness of quantum mechanics; to prove it, he employed the instantaneous nonlocal effects caused by the collapse of the wavefunction of a single particle—the spooky action...

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Autor principal:	L. M. Arévalo Aguilar
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4666d609adda4fdf8e5a8de6fd56528e
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spelling	oai:doaj.org-article:4666d609adda4fdf8e5a8de6fd56528e2021-12-02T16:36:04ZNonlocal single particle steering generated through single particle entanglement10.1038/s41598-021-85508-82045-2322https://doaj.org/article/4666d609adda4fdf8e5a8de6fd56528e2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85508-8https://doaj.org/toc/2045-2322Abstract In 1927, at the Solvay conference, Einstein posed a thought experiment with the primary intention of showing the incompleteness of quantum mechanics; to prove it, he employed the instantaneous nonlocal effects caused by the collapse of the wavefunction of a single particle—the spooky action at a distance–, when a measurement is done. This historical event preceded the well-know Einstein–Podolsk–Rosen criticism over the incompleteness of quantum mechanics. Here, by using the Stern–Gerlach experiment, we demonstrate how the instantaneous nonlocal feature of the collapse of the wavefunction together with the single-particle entanglement can be used to produce the nonlocal effect of steering, i.e. the single-particle steering. In the steering process Bob gets a quantum state depending on which observable Alice decides to measure. To accomplish this, we fully exploit the spreading (over large distances) of the entangled wavefunction of the single-particle. In particular, we demonstrate that the nonlocality of the single-particle entangled state allows the particle to “know” about the kind of detector Alice is using to steer Bob’s state. Therefore, notwithstanding strong counterarguments, we prove that the single-particle entanglement gives rise to truly nonlocal effects at two faraway places. This opens the possibility of using the single-particle entanglement for implementing truly nonlocal task.L. M. Arévalo AguilarNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q L. M. Arévalo Aguilar Nonlocal single particle steering generated through single particle entanglement
description	Abstract In 1927, at the Solvay conference, Einstein posed a thought experiment with the primary intention of showing the incompleteness of quantum mechanics; to prove it, he employed the instantaneous nonlocal effects caused by the collapse of the wavefunction of a single particle—the spooky action at a distance–, when a measurement is done. This historical event preceded the well-know Einstein–Podolsk–Rosen criticism over the incompleteness of quantum mechanics. Here, by using the Stern–Gerlach experiment, we demonstrate how the instantaneous nonlocal feature of the collapse of the wavefunction together with the single-particle entanglement can be used to produce the nonlocal effect of steering, i.e. the single-particle steering. In the steering process Bob gets a quantum state depending on which observable Alice decides to measure. To accomplish this, we fully exploit the spreading (over large distances) of the entangled wavefunction of the single-particle. In particular, we demonstrate that the nonlocality of the single-particle entangled state allows the particle to “know” about the kind of detector Alice is using to steer Bob’s state. Therefore, notwithstanding strong counterarguments, we prove that the single-particle entanglement gives rise to truly nonlocal effects at two faraway places. This opens the possibility of using the single-particle entanglement for implementing truly nonlocal task.
format	article
author	L. M. Arévalo Aguilar
author_facet	L. M. Arévalo Aguilar
author_sort	L. M. Arévalo Aguilar
title	Nonlocal single particle steering generated through single particle entanglement
title_short	Nonlocal single particle steering generated through single particle entanglement
title_full	Nonlocal single particle steering generated through single particle entanglement
title_fullStr	Nonlocal single particle steering generated through single particle entanglement
title_full_unstemmed	Nonlocal single particle steering generated through single particle entanglement
title_sort	nonlocal single particle steering generated through single particle entanglement
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/4666d609adda4fdf8e5a8de6fd56528e
work_keys_str_mv	AT lmarevaloaguilar nonlocalsingleparticlesteeringgeneratedthroughsingleparticleentanglement
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Nonlocal single particle steering generated through single particle entanglement

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