Quantum entanglement and statistics of photons on a beam splitter in the form of coupled waveguides

It is well known that a beam splitter (BS) can be used as a source of photon quantum entanglement. This is due to the fact that the statistics of photons changes at the output ports of the BS. Usually, quantum entanglement and photon statistics take into account the constancy of the reflection coeff...

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Autores principales: Makarov, D. N., Gusarevich, E. S., Goshev, A. A., Makarova, K. A., Kapustin, S. N., Kharlamova, A. A., Tsykareva, Yu. V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8119456/
https://www.ncbi.nlm.nih.gov/pubmed/33986464
http://dx.doi.org/10.1038/s41598-021-89838-5
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author Makarov, D. N.
Gusarevich, E. S.
Goshev, A. A.
Makarova, K. A.
Kapustin, S. N.
Kharlamova, A. A.
Tsykareva, Yu. V.
author_facet Makarov, D. N.
Gusarevich, E. S.
Goshev, A. A.
Makarova, K. A.
Kapustin, S. N.
Kharlamova, A. A.
Tsykareva, Yu. V.
author_sort Makarov, D. N.
collection PubMed
description It is well known that a beam splitter (BS) can be used as a source of photon quantum entanglement. This is due to the fact that the statistics of photons changes at the output ports of the BS. Usually, quantum entanglement and photon statistics take into account the constancy of the reflection coefficient R or the transmission coefficient T of the BS, where [Formula: see text] . It has recently been shown that if BS is used in the form of coupled waveguides, the coefficients R and T will depend on the photon frequencies. In this paper, it is shown that the quantum entanglement and statistics of photons at the output ports of a BS can change significantly if a BS is used in the form of coupled waveguides, where the coefficients R and T are frequency-dependent.
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spelling pubmed-81194562021-05-14 Quantum entanglement and statistics of photons on a beam splitter in the form of coupled waveguides Makarov, D. N. Gusarevich, E. S. Goshev, A. A. Makarova, K. A. Kapustin, S. N. Kharlamova, A. A. Tsykareva, Yu. V. Sci Rep Article It is well known that a beam splitter (BS) can be used as a source of photon quantum entanglement. This is due to the fact that the statistics of photons changes at the output ports of the BS. Usually, quantum entanglement and photon statistics take into account the constancy of the reflection coefficient R or the transmission coefficient T of the BS, where [Formula: see text] . It has recently been shown that if BS is used in the form of coupled waveguides, the coefficients R and T will depend on the photon frequencies. In this paper, it is shown that the quantum entanglement and statistics of photons at the output ports of a BS can change significantly if a BS is used in the form of coupled waveguides, where the coefficients R and T are frequency-dependent. Nature Publishing Group UK 2021-05-13 /pmc/articles/PMC8119456/ /pubmed/33986464 http://dx.doi.org/10.1038/s41598-021-89838-5 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Makarov, D. N.
Gusarevich, E. S.
Goshev, A. A.
Makarova, K. A.
Kapustin, S. N.
Kharlamova, A. A.
Tsykareva, Yu. V.
Quantum entanglement and statistics of photons on a beam splitter in the form of coupled waveguides
title Quantum entanglement and statistics of photons on a beam splitter in the form of coupled waveguides
title_full Quantum entanglement and statistics of photons on a beam splitter in the form of coupled waveguides
title_fullStr Quantum entanglement and statistics of photons on a beam splitter in the form of coupled waveguides
title_full_unstemmed Quantum entanglement and statistics of photons on a beam splitter in the form of coupled waveguides
title_short Quantum entanglement and statistics of photons on a beam splitter in the form of coupled waveguides
title_sort quantum entanglement and statistics of photons on a beam splitter in the form of coupled waveguides
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8119456/
https://www.ncbi.nlm.nih.gov/pubmed/33986464
http://dx.doi.org/10.1038/s41598-021-89838-5
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