Storage and retrieval of microwave fields at the single-photon level in a spin ensemble

C. Grezes; B. Julsgaard; Y. Kubo; W. L. Ma; M. Stern; A. Bienfait; K. Nakamura; J. Isoya; S. Onoda; T. Ohshima; V. Jacques; D. Vion; D. Esteve; R. B. Liu; K. Mølmer; P. Bertet

doi:10.1103/PhysRevA.92.020301

Storage and retrieval of microwave fields at the single-photon level in a spin ensemble

C. Grezes, B. Julsgaard, Y. Kubo, W. L. Ma, M. Stern, A. Bienfait, K. Nakamura, J. Isoya, S. Onoda, T. Ohshima, V. Jacques, D. Vion, D. Esteve, R. B. Liu, K. Mølmer, P. Bertet

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51 Scopus citations

Abstract

We report the storage of microwave pulses at the single-photon level in a spin-ensemble memory consisting of 1010 nitrogen-vacancy centers in a diamond crystal coupled to a superconducting LC resonator. The energy of the signal, retrieved 100μs later by spin-echo techniques, reaches 0.3% of the energy absorbed by the spins. This 0.3% storage efficiency is quantitatively accounted for by simulations. This figure of merit is sufficient to envision first implementations of a quantum memory for superconducting qubits.

Original language	English
Article number	020301
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	92
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.92.020301
State	Published - 7 Aug 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 American Physical Society.

Funding

Funders	Funder number
Seventh Framework Programme	600927
Japan Society for the Promotion of Science	26246001

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10.1103/PhysRevA.92.020301

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Grezes, C., Julsgaard, B., Kubo, Y., Ma, W. L., Stern, M., Bienfait, A., Nakamura, K., Isoya, J., Onoda, S., Ohshima, T., Jacques, V., Vion, D., Esteve, D., Liu, R. B., Mølmer, K., & Bertet, P. (2015). Storage and retrieval of microwave fields at the single-photon level in a spin ensemble. Physical Review A - Atomic, Molecular, and Optical Physics, 92(2), Article 020301. https://doi.org/10.1103/PhysRevA.92.020301

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abstract = "We report the storage of microwave pulses at the single-photon level in a spin-ensemble memory consisting of 1010 nitrogen-vacancy centers in a diamond crystal coupled to a superconducting LC resonator. The energy of the signal, retrieved 100μs later by spin-echo techniques, reaches 0.3% of the energy absorbed by the spins. This 0.3% storage efficiency is quantitatively accounted for by simulations. This figure of merit is sufficient to envision first implementations of a quantum memory for superconducting qubits.",

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Grezes, C, Julsgaard, B, Kubo, Y, Ma, WL, Stern, M, Bienfait, A, Nakamura, K, Isoya, J, Onoda, S, Ohshima, T, Jacques, V, Vion, D, Esteve, D, Liu, RB, Mølmer, K & Bertet, P 2015, 'Storage and retrieval of microwave fields at the single-photon level in a spin ensemble', Physical Review A - Atomic, Molecular, and Optical Physics, vol. 92, no. 2, 020301. https://doi.org/10.1103/PhysRevA.92.020301

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T1 - Storage and retrieval of microwave fields at the single-photon level in a spin ensemble

AU - Grezes, C.

AU - Julsgaard, B.

AU - Kubo, Y.

AU - Ma, W. L.

AU - Stern, M.

AU - Bienfait, A.

AU - Nakamura, K.

AU - Isoya, J.

AU - Onoda, S.

AU - Ohshima, T.

AU - Jacques, V.

AU - Vion, D.

AU - Esteve, D.

AU - Liu, R. B.

AU - Mølmer, K.

AU - Bertet, P.

PY - 2015/8/7

Y1 - 2015/8/7

N2 - We report the storage of microwave pulses at the single-photon level in a spin-ensemble memory consisting of 1010 nitrogen-vacancy centers in a diamond crystal coupled to a superconducting LC resonator. The energy of the signal, retrieved 100μs later by spin-echo techniques, reaches 0.3% of the energy absorbed by the spins. This 0.3% storage efficiency is quantitatively accounted for by simulations. This figure of merit is sufficient to envision first implementations of a quantum memory for superconducting qubits.

AB - We report the storage of microwave pulses at the single-photon level in a spin-ensemble memory consisting of 1010 nitrogen-vacancy centers in a diamond crystal coupled to a superconducting LC resonator. The energy of the signal, retrieved 100μs later by spin-echo techniques, reaches 0.3% of the energy absorbed by the spins. This 0.3% storage efficiency is quantitatively accounted for by simulations. This figure of merit is sufficient to envision first implementations of a quantum memory for superconducting qubits.

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JF - Physical Review A - Atomic, Molecular, and Optical Physics

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ER -

Storage and retrieval of microwave fields at the single-photon level in a spin ensemble

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