A two-way quantum interface for linking Sr+ transition at 422nm to the telecommunications C-band
A two-way quantum interface for linking Sr+ transition at 422nm to the telecommunications C-band
We report a single-stage bi-directional interface capable of linking Sr+ trapped ion qubits in a long-distance quantum network. Our interface converts photons between the Sr+ emission wavelength at 422 nm and the telecoms C-band to enable low-loss transmission over optical fiber. We have achieved both up- and down-conversion at the single photon level with efficiencies of 9.4 % and 1.1 % respectively. Furthermore, we demonstrate that the noise introduced during the conversion process is sufficiently low to implement high-fidelity interconnects suitable for quantum networking.
Wright, Thomas
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Francis-Jones, Robert J.A.
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Gawith, Corin
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Becker, Jonas N.
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Ledingham, Patrick M.
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Smith, Peter G.R.
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Nunn, Joshua
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Mosley, Peter J.
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Brecht, Benjamin
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Walmsley, I.A.
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22 February 2018
Wright, Thomas
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Francis-Jones, Robert J.A.
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Gawith, Corin
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Becker, Jonas N.
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Ledingham, Patrick M.
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Smith, Peter G.R.
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Nunn, Joshua
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Mosley, Peter J.
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Brecht, Benjamin
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Walmsley, I.A.
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Wright, Thomas, Francis-Jones, Robert J.A., Gawith, Corin, Becker, Jonas N., Ledingham, Patrick M., Smith, Peter G.R., Nunn, Joshua, Mosley, Peter J., Brecht, Benjamin and Walmsley, I.A.
(2018)
A two-way quantum interface for linking Sr+ transition at 422nm to the telecommunications C-band.
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Conference or Workshop Item
(Paper)
Abstract
We report a single-stage bi-directional interface capable of linking Sr+ trapped ion qubits in a long-distance quantum network. Our interface converts photons between the Sr+ emission wavelength at 422 nm and the telecoms C-band to enable low-loss transmission over optical fiber. We have achieved both up- and down-conversion at the single photon level with efficiencies of 9.4 % and 1.1 % respectively. Furthermore, we demonstrate that the noise introduced during the conversion process is sufficiently low to implement high-fidelity interconnects suitable for quantum networking.
Text
1802.07947
- Author's Original
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Published date: 22 February 2018
Identifiers
Local EPrints ID: 418317
URI: http://eprints.soton.ac.uk/id/eprint/418317
PURE UUID: a8c69e39-1f1b-4d74-944e-a5727765abbe
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Date deposited: 28 Feb 2018 17:30
Last modified: 12 Jul 2024 02:06
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Contributors
Author:
Thomas Wright
Author:
Robert J.A. Francis-Jones
Author:
Jonas N. Becker
Author:
Joshua Nunn
Author:
Peter J. Mosley
Author:
Benjamin Brecht
Author:
I.A. Walmsley
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