Experimental realization of spatially separated entanglement with continuous variables using laser pulse trains

Spatially separated entanglement is demonstrated by interfering two high-repetition squeezed pulse trains. The entanglement correlation of the quadrature amplitudes between individual pulses is interrogated. It is characterized in terms of the sufficient inseparability criterion with an optimum resu...

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Autores principales: Zhang, Yun, Okubo, Ryuhi, Hirano, Mayumi, Eto, Yujiro, Hirano, Takuya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4538399/
https://www.ncbi.nlm.nih.gov/pubmed/26278478
http://dx.doi.org/10.1038/srep13029
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author Zhang, Yun
Okubo, Ryuhi
Hirano, Mayumi
Eto, Yujiro
Hirano, Takuya
author_facet Zhang, Yun
Okubo, Ryuhi
Hirano, Mayumi
Eto, Yujiro
Hirano, Takuya
author_sort Zhang, Yun
collection PubMed
description Spatially separated entanglement is demonstrated by interfering two high-repetition squeezed pulse trains. The entanglement correlation of the quadrature amplitudes between individual pulses is interrogated. It is characterized in terms of the sufficient inseparability criterion with an optimum result of [Image: see text] in the frequency domain and [Image: see text] in the time domain. The quantum correlation is also observed when the two measurement stations are separated by a physical distance of 4.5 m, which is sufficiently large to demonstrate the space-like separation, after accounting for the measurement time.
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spelling pubmed-45383992015-08-25 Experimental realization of spatially separated entanglement with continuous variables using laser pulse trains Zhang, Yun Okubo, Ryuhi Hirano, Mayumi Eto, Yujiro Hirano, Takuya Sci Rep Article Spatially separated entanglement is demonstrated by interfering two high-repetition squeezed pulse trains. The entanglement correlation of the quadrature amplitudes between individual pulses is interrogated. It is characterized in terms of the sufficient inseparability criterion with an optimum result of [Image: see text] in the frequency domain and [Image: see text] in the time domain. The quantum correlation is also observed when the two measurement stations are separated by a physical distance of 4.5 m, which is sufficiently large to demonstrate the space-like separation, after accounting for the measurement time. Nature Publishing Group 2015-08-17 /pmc/articles/PMC4538399/ /pubmed/26278478 http://dx.doi.org/10.1038/srep13029 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ 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/
spellingShingle Article
Zhang, Yun
Okubo, Ryuhi
Hirano, Mayumi
Eto, Yujiro
Hirano, Takuya
Experimental realization of spatially separated entanglement with continuous variables using laser pulse trains
title Experimental realization of spatially separated entanglement with continuous variables using laser pulse trains
title_full Experimental realization of spatially separated entanglement with continuous variables using laser pulse trains
title_fullStr Experimental realization of spatially separated entanglement with continuous variables using laser pulse trains
title_full_unstemmed Experimental realization of spatially separated entanglement with continuous variables using laser pulse trains
title_short Experimental realization of spatially separated entanglement with continuous variables using laser pulse trains
title_sort experimental realization of spatially separated entanglement with continuous variables using laser pulse trains
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4538399/
https://www.ncbi.nlm.nih.gov/pubmed/26278478
http://dx.doi.org/10.1038/srep13029
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AT etoyujiro experimentalrealizationofspatiallyseparatedentanglementwithcontinuousvariablesusinglaserpulsetrains
AT hiranotakuya experimentalrealizationofspatiallyseparatedentanglementwithcontinuousvariablesusinglaserpulsetrains

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