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Quantum storage of heralded single photons in a praseodymium-doped crystal

Quantum storage of heralded single photons in a praseodymium-doped crystal
Quantum storage of heralded single photons in a praseodymium-doped crystal
We report on experiments demonstrating the reversible mapping of heralded single photons to long-lived collective optical atomic excitations stored in a Pr3+:Y2SiO5 crystal. A cavity-enhanced spontaneous down-conversion source is employed to produce widely nondegenerate narrow-band (≈2 MHz) photon pairs. The idler photons, whose frequency is compatible with telecommunication optical fibers, are used to herald the creation of the signal photons, compatible with the Pr3+ transition. The signal photons are stored and retrieved using the atomic frequency comb protocol. We demonstrate storage times up to 4.5 μs while preserving nonclassical correlations between the heralding and the retrieved photon. This is more than 20 times longer than in previous realizations in solid state devices, and implemented in a system ideally suited for the extension to spin-wave storage. © 2014 American Physical Society.
1079-7114
Rieländer, Daniel
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Kutluer, Kutlu
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Ledingham, Patrick M.
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Gündoǧan, Mustafa
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Fekete, Julia
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Mazzera, Margherita
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De Riedmatten, Hugues
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Rieländer, Daniel
a65756b3-1b41-4bdf-b898-7c3599014fed
Kutluer, Kutlu
f1745733-d9d0-43c0-9046-075ae72bbad7
Ledingham, Patrick M.
8db45fde-00d8-421a-93d6-7f18ac835c28
Gündoǧan, Mustafa
de97c64c-c0b9-4f7c-b259-62d21e10dcf9
Fekete, Julia
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Mazzera, Margherita
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De Riedmatten, Hugues
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Rieländer, Daniel, Kutluer, Kutlu, Ledingham, Patrick M., Gündoǧan, Mustafa, Fekete, Julia, Mazzera, Margherita and De Riedmatten, Hugues (2014) Quantum storage of heralded single photons in a praseodymium-doped crystal. Physical Review Letters, 112 (4), [040504]. (doi:10.1103/PhysRevLett.112.040504).

Record type: Article

Abstract

We report on experiments demonstrating the reversible mapping of heralded single photons to long-lived collective optical atomic excitations stored in a Pr3+:Y2SiO5 crystal. A cavity-enhanced spontaneous down-conversion source is employed to produce widely nondegenerate narrow-band (≈2 MHz) photon pairs. The idler photons, whose frequency is compatible with telecommunication optical fibers, are used to herald the creation of the signal photons, compatible with the Pr3+ transition. The signal photons are stored and retrieved using the atomic frequency comb protocol. We demonstrate storage times up to 4.5 μs while preserving nonclassical correlations between the heralding and the retrieved photon. This is more than 20 times longer than in previous realizations in solid state devices, and implemented in a system ideally suited for the extension to spin-wave storage. © 2014 American Physical Society.

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Accepted/In Press date: 17 October 2013
Published date: 31 January 2014
Additional Information: ARXIV IS AM

Identifiers

Local EPrints ID: 443888
URI: http://eprints.soton.ac.uk/id/eprint/443888
ISSN: 1079-7114
PURE UUID: 5a8399bf-4435-4216-8672-4d696bbaa61d

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Date deposited: 16 Sep 2020 16:34
Last modified: 16 Sep 2020 16:34

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Contributors

Author: Daniel Rieländer
Author: Kutlu Kutluer
Author: Mustafa Gündoǧan
Author: Julia Fekete
Author: Margherita Mazzera
Author: Hugues De Riedmatten

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