Solid state spin-wave quantum memory for time-bin qubits
Solid state spin-wave quantum memory for time-bin qubits
We demonstrate the first solid-state spin-wave optical quantum memory with on-demand read-out. Using the full atomic frequency comb scheme in a Pr3+∶Y2SiO5 crystal, we store weak coherent pulses at the single-photon level with a signal-to-noise ratio > 10. Narrow-band spectral filtering based on spectral hole burning in a second Pr3+∶Y2SiO5 crystal is used to filter out the excess noise created by control pulses to reach an unconditional noise level of (2.0±0.3)×10−3 photons per pulse. We also report spin-wave storage of photonic time-bin qubits with conditional fidelities higher than achievable by a measure and prepare strategy, demonstrating that the spin-wave memory operates in the quantum regime. This makes our device the first demonstration of a quantum memory for time-bin qubits, with on-demand read-out of the stored quantum information. These results represent an important step for the use of solid-state quantum memories in scalable quantum networks.
1-5
Gündoğan, Mustafa
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Ledingham, Patrick M.
8db45fde-00d8-421a-93d6-7f18ac835c28
Kutluer, Kutlu
f1745733-d9d0-43c0-9046-075ae72bbad7
Mazzera, Margherita
1c51fc4d-cabb-4c3a-a593-c0e2400d3324
De Riedmatten, Hugues
759bbde3-5fbe-4e2b-8cf5-553a58d128bd
12 June 2015
Gündoğan, Mustafa
b09c7223-a67a-4361-8d73-18de0e5076e4
Ledingham, Patrick M.
8db45fde-00d8-421a-93d6-7f18ac835c28
Kutluer, Kutlu
f1745733-d9d0-43c0-9046-075ae72bbad7
Mazzera, Margherita
1c51fc4d-cabb-4c3a-a593-c0e2400d3324
De Riedmatten, Hugues
759bbde3-5fbe-4e2b-8cf5-553a58d128bd
Gündoğan, Mustafa, Ledingham, Patrick M., Kutluer, Kutlu, Mazzera, Margherita and De Riedmatten, Hugues
(2015)
Solid state spin-wave quantum memory for time-bin qubits.
Physical Review Letters, 114 (23), , [230501].
(doi:10.1103/PhysRevLett.114.230501).
Abstract
We demonstrate the first solid-state spin-wave optical quantum memory with on-demand read-out. Using the full atomic frequency comb scheme in a Pr3+∶Y2SiO5 crystal, we store weak coherent pulses at the single-photon level with a signal-to-noise ratio > 10. Narrow-band spectral filtering based on spectral hole burning in a second Pr3+∶Y2SiO5 crystal is used to filter out the excess noise created by control pulses to reach an unconditional noise level of (2.0±0.3)×10−3 photons per pulse. We also report spin-wave storage of photonic time-bin qubits with conditional fidelities higher than achievable by a measure and prepare strategy, demonstrating that the spin-wave memory operates in the quantum regime. This makes our device the first demonstration of a quantum memory for time-bin qubits, with on-demand read-out of the stored quantum information. These results represent an important step for the use of solid-state quantum memories in scalable quantum networks.
Text
Solid state spin-wave quantum memory for time-bin
- Accepted Manuscript
More information
Accepted/In Press date: 25 February 2015
e-pub ahead of print date: 12 June 2015
Published date: 12 June 2015
Additional Information:
ARXIV IS AM
Identifiers
Local EPrints ID: 443891
URI: http://eprints.soton.ac.uk/id/eprint/443891
ISSN: 0031-9007
PURE UUID: 9b2cd5b1-db84-4294-8007-1c277edfd556
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Date deposited: 16 Sep 2020 16:34
Last modified: 17 Mar 2024 04:03
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Contributors
Author:
Mustafa Gündoğan
Author:
Kutlu Kutluer
Author:
Margherita Mazzera
Author:
Hugues De Riedmatten
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