Optical driving, spin initialization and readout of single SiV− centers in a Fabry-Perot resonator
Abstract Large-scale quantum communication networks require quantum repeaters due to the signal attenuation in optical fibers. Ideal quantum repeater nodes efficiently link a quantum memory with photons serving as flying qubits. Color centers in diamond, particularly the negatively charged silicon v...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-10-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-023-01422-7 |
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| _version_ | 1832571576645582848 |
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| author | Gregor Bayer Robert Berghaus Selene Sachero Andrea B. Filipovski Lukas Antoniuk Niklas Lettner Richard Waltrich Marco Klotz Patrick Maier Viatcheslav Agafonov Alexander Kubanek |
| author_facet | Gregor Bayer Robert Berghaus Selene Sachero Andrea B. Filipovski Lukas Antoniuk Niklas Lettner Richard Waltrich Marco Klotz Patrick Maier Viatcheslav Agafonov Alexander Kubanek |
| author_sort | Gregor Bayer |
| collection | DOAJ |
| description | Abstract Large-scale quantum communication networks require quantum repeaters due to the signal attenuation in optical fibers. Ideal quantum repeater nodes efficiently link a quantum memory with photons serving as flying qubits. Color centers in diamond, particularly the negatively charged silicon vacancy center, are promising candidates to establish such nodes. Inefficient connection between the color center’s spin to the optical fiber networks is a major obstacle, that could be resolved by utilizing optical resonators. Here, we couple individual silicon vacancy centers incorporated in a nanodiamond to a hemispherical, stable Fabry-Perot microcavity, achieving Purcell-factors larger than 1. We demonstrate coherent optical driving between ground and excited state with a Rabi-frequency of 330 MHz, all-optical initialization and readout of the electron spin in magnetic fields of up to 3.2 T. Spin initialization within 67 ns with a 80 % fidelity and a lifetime of 350 ns are reached. Our demonstration opens the way to realize quantum repeater applications. |
| format | Article |
| id | doaj-art-3cf4587177604a77a6e1769ae7faf0cb |
| institution | Kabale University |
| issn | 2399-3650 |
| language | English |
| publishDate | 2023-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Physics |
| spelling | doaj-art-3cf4587177604a77a6e1769ae7faf0cb2025-02-02T12:28:00ZengNature PortfolioCommunications Physics2399-36502023-10-01611910.1038/s42005-023-01422-7Optical driving, spin initialization and readout of single SiV− centers in a Fabry-Perot resonatorGregor Bayer0Robert Berghaus1Selene Sachero2Andrea B. Filipovski3Lukas Antoniuk4Niklas Lettner5Richard Waltrich6Marco Klotz7Patrick Maier8Viatcheslav Agafonov9Alexander Kubanek10Institute for Quantum Optics, Ulm UniversityInstitute for Quantum Optics, Ulm UniversityInstitute for Quantum Optics, Ulm UniversityInstitute for Quantum Optics, Ulm UniversityInstitute for Quantum Optics, Ulm UniversityInstitute for Quantum Optics, Ulm UniversityInstitute for Quantum Optics, Ulm UniversityInstitute for Quantum Optics, Ulm UniversityInstitute for Quantum Optics, Ulm UniversityGREMAN, UMR 7347 CNRS, INSA-CVL, Tours UniversityInstitute for Quantum Optics, Ulm UniversityAbstract Large-scale quantum communication networks require quantum repeaters due to the signal attenuation in optical fibers. Ideal quantum repeater nodes efficiently link a quantum memory with photons serving as flying qubits. Color centers in diamond, particularly the negatively charged silicon vacancy center, are promising candidates to establish such nodes. Inefficient connection between the color center’s spin to the optical fiber networks is a major obstacle, that could be resolved by utilizing optical resonators. Here, we couple individual silicon vacancy centers incorporated in a nanodiamond to a hemispherical, stable Fabry-Perot microcavity, achieving Purcell-factors larger than 1. We demonstrate coherent optical driving between ground and excited state with a Rabi-frequency of 330 MHz, all-optical initialization and readout of the electron spin in magnetic fields of up to 3.2 T. Spin initialization within 67 ns with a 80 % fidelity and a lifetime of 350 ns are reached. Our demonstration opens the way to realize quantum repeater applications.https://doi.org/10.1038/s42005-023-01422-7 |
| spellingShingle | Gregor Bayer Robert Berghaus Selene Sachero Andrea B. Filipovski Lukas Antoniuk Niklas Lettner Richard Waltrich Marco Klotz Patrick Maier Viatcheslav Agafonov Alexander Kubanek Optical driving, spin initialization and readout of single SiV− centers in a Fabry-Perot resonator Communications Physics |
| title | Optical driving, spin initialization and readout of single SiV− centers in a Fabry-Perot resonator |
| title_full | Optical driving, spin initialization and readout of single SiV− centers in a Fabry-Perot resonator |
| title_fullStr | Optical driving, spin initialization and readout of single SiV− centers in a Fabry-Perot resonator |
| title_full_unstemmed | Optical driving, spin initialization and readout of single SiV− centers in a Fabry-Perot resonator |
| title_short | Optical driving, spin initialization and readout of single SiV− centers in a Fabry-Perot resonator |
| title_sort | optical driving spin initialization and readout of single siv centers in a fabry perot resonator |
| url | https://doi.org/10.1038/s42005-023-01422-7 |
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