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Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths

Solid-state quantum emitters with manipulable spin-qubits are promising platforms for quantum communication applications. Although such light-matter interfaces could be realized in many systems only a few allow for light emission in the telecom bands necessary for long-distance quantum networks. Her...

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Autores principales: Dusanowski, Łukasz, Nawrath, Cornelius, Portalupi, Simone L., Jetter, Michael, Huber, Tobias, Klembt, Sebastian, Michler, Peter, Höfling, Sven
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8826386/
https://www.ncbi.nlm.nih.gov/pubmed/35136062
http://dx.doi.org/10.1038/s41467-022-28328-2
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author Dusanowski, Łukasz
Nawrath, Cornelius
Portalupi, Simone L.
Jetter, Michael
Huber, Tobias
Klembt, Sebastian
Michler, Peter
Höfling, Sven
author_facet Dusanowski, Łukasz
Nawrath, Cornelius
Portalupi, Simone L.
Jetter, Michael
Huber, Tobias
Klembt, Sebastian
Michler, Peter
Höfling, Sven
author_sort Dusanowski, Łukasz
collection PubMed
description Solid-state quantum emitters with manipulable spin-qubits are promising platforms for quantum communication applications. Although such light-matter interfaces could be realized in many systems only a few allow for light emission in the telecom bands necessary for long-distance quantum networks. Here, we propose and implement an optically active solid-state spin-qubit based on a hole confined in a single InAs/GaAs quantum dot grown on an InGaAs metamorphic buffer layer emitting photons in the C-band. We lift the hole spin-degeneracy using an external magnetic field and demonstrate hole injection, initialization, read-out and complete coherent control using picosecond optical pulses. These results showcase a solid-state spin-qubit platform compatible with preexisting optical fiber networks.
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spelling pubmed-88263862022-02-18 Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths Dusanowski, Łukasz Nawrath, Cornelius Portalupi, Simone L. Jetter, Michael Huber, Tobias Klembt, Sebastian Michler, Peter Höfling, Sven Nat Commun Article Solid-state quantum emitters with manipulable spin-qubits are promising platforms for quantum communication applications. Although such light-matter interfaces could be realized in many systems only a few allow for light emission in the telecom bands necessary for long-distance quantum networks. Here, we propose and implement an optically active solid-state spin-qubit based on a hole confined in a single InAs/GaAs quantum dot grown on an InGaAs metamorphic buffer layer emitting photons in the C-band. We lift the hole spin-degeneracy using an external magnetic field and demonstrate hole injection, initialization, read-out and complete coherent control using picosecond optical pulses. These results showcase a solid-state spin-qubit platform compatible with preexisting optical fiber networks. Nature Publishing Group UK 2022-02-08 /pmc/articles/PMC8826386/ /pubmed/35136062 http://dx.doi.org/10.1038/s41467-022-28328-2 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Dusanowski, Łukasz
Nawrath, Cornelius
Portalupi, Simone L.
Jetter, Michael
Huber, Tobias
Klembt, Sebastian
Michler, Peter
Höfling, Sven
Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths
title Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths
title_full Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths
title_fullStr Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths
title_full_unstemmed Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths
title_short Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths
title_sort optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8826386/
https://www.ncbi.nlm.nih.gov/pubmed/35136062
http://dx.doi.org/10.1038/s41467-022-28328-2
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