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Generation of photonic entanglement in green fluorescent proteins

Recent development of spectroscopic techniques based on quantum states of light can precipitate many breakthroughs in observing and controlling light-matter interactions in biological materials on a fundamental quantum level. For this reason, the generation of entangled light in biologically produce...

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Detalles Bibliográficos
Autores principales: Shi, Siyuan, Kumar, Prem, Lee, Kim Fook
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5715022/
https://www.ncbi.nlm.nih.gov/pubmed/29203839
http://dx.doi.org/10.1038/s41467-017-02027-9
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author Shi, Siyuan
Kumar, Prem
Lee, Kim Fook
author_facet Shi, Siyuan
Kumar, Prem
Lee, Kim Fook
author_sort Shi, Siyuan
collection PubMed
description Recent development of spectroscopic techniques based on quantum states of light can precipitate many breakthroughs in observing and controlling light-matter interactions in biological materials on a fundamental quantum level. For this reason, the generation of entangled light in biologically produced fluorescent proteins would be promising because of their biocompatibility. Here we demonstrate the generation of polarization-entangled two-photon state through spontaneous four-wave mixing in enhanced green fluorescent proteins. The reconstructed density matrix indicates that the entangled state is subject to decoherence originating from two-photon absorption. However, the prepared state is less sensitive to environmental decoherence because of the protective β-barrel structure that encapsulates the fluorophore in the protein. We further explore the quantumness, including classical and quantum correlations, of the state in the decoherence environment. Our method for photonic entanglement generation may have potential for developing quantum spectroscopic techniques and quantum-enhanced measurements in biological materials.
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spelling pubmed-57150222017-12-06 Generation of photonic entanglement in green fluorescent proteins Shi, Siyuan Kumar, Prem Lee, Kim Fook Nat Commun Article Recent development of spectroscopic techniques based on quantum states of light can precipitate many breakthroughs in observing and controlling light-matter interactions in biological materials on a fundamental quantum level. For this reason, the generation of entangled light in biologically produced fluorescent proteins would be promising because of their biocompatibility. Here we demonstrate the generation of polarization-entangled two-photon state through spontaneous four-wave mixing in enhanced green fluorescent proteins. The reconstructed density matrix indicates that the entangled state is subject to decoherence originating from two-photon absorption. However, the prepared state is less sensitive to environmental decoherence because of the protective β-barrel structure that encapsulates the fluorophore in the protein. We further explore the quantumness, including classical and quantum correlations, of the state in the decoherence environment. Our method for photonic entanglement generation may have potential for developing quantum spectroscopic techniques and quantum-enhanced measurements in biological materials. Nature Publishing Group UK 2017-12-05 /pmc/articles/PMC5715022/ /pubmed/29203839 http://dx.doi.org/10.1038/s41467-017-02027-9 Text en © The Author(s) 2017 Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Shi, Siyuan
Kumar, Prem
Lee, Kim Fook
Generation of photonic entanglement in green fluorescent proteins
title Generation of photonic entanglement in green fluorescent proteins
title_full Generation of photonic entanglement in green fluorescent proteins
title_fullStr Generation of photonic entanglement in green fluorescent proteins
title_full_unstemmed Generation of photonic entanglement in green fluorescent proteins
title_short Generation of photonic entanglement in green fluorescent proteins
title_sort generation of photonic entanglement in green fluorescent proteins
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5715022/
https://www.ncbi.nlm.nih.gov/pubmed/29203839
http://dx.doi.org/10.1038/s41467-017-02027-9
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