Towards a spin-ensemble quantum memory for superconducting qubits

Cécile Grezesa; Yuimaru Kuboa; Brian Julsgaard; Takahide Umeda; Junichi  Isoya; Hitoshi  Sumiya; Hiroshi Abe; Shinobu Onoda; Takeshi  Ohshima; Kazuo  Nakamura; Igor  Diniz; Alexia  Auffeves; Vincent Jacques; Jean-François Roch; Denis Vion; Daniel Esteve; Klaus Mølmer; Patrice Bertet

doi:10.1016/j.crhy.2016.07.006

Towards a spin-ensemble quantum memory for superconducting qubits

Cécile Grezesa, Yuimaru Kuboa, Brian Julsgaard, Takahide Umeda, Junichi Isoya, Hitoshi Sumiya, Hiroshi Abe, Shinobu Onoda, Takeshi Ohshima, Kazuo Nakamura, Igor Diniz, Alexia Auffeves, Vincent Jacques, Jean-François Roch, Denis Vion, Daniel Esteve, Klaus Mølmer, Patrice Bertet

Department of Physics and Astronomy

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

39 Citations (Scopus)

Abstract

This article reviews efforts to build a new type of quantum device, which combines an ensemble of electronic spins with long coherence times, and a small-scale superconducting quantum processor. The goal is to store over long times arbitrary qubit states in orthogonal collective modes of the spin-ensemble, and to retrieve them on-demand. We first present the protocol devised for such a multi-mode quantum memory. We then describe a series of experimental results using NV (as in nitrogen vacancy) center spins in diamond, which demonstrate its main building blocks: the transfer of arbitrary quantum states from a qubit into the spin ensemble, and the multi-mode retrieval of classical microwave pulses down to the single-photon level with a Hahn-echo like sequence. A reset of the spin memory is implemented in-between two successive sequences using optical repumping of the spins.

Original language	English
Journal	Comptes Rendus Physique
Volume	17
Issue	7
Pages (from-to)	693–704
Number of pages	12
ISSN	1631-0705
DOIs	https://doi.org/10.1016/j.crhy.2016.07.006
Publication status	Published - 1 Aug 2016

Keywords

NV centers in diamond
Quantum memory
Spin qubits
Superconducting qubits

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Grezesa, C., Kuboa, Y., Julsgaard, B., Umeda, T., Isoya, J., Sumiya, H., Abe, H., Onoda, S., Ohshima, T., Nakamura, K., Diniz, I., Auffeves, A., Jacques, V., Roch, J.-F., Vion, D., Esteve, D., Mølmer, K., & Bertet, P. (2016). Towards a spin-ensemble quantum memory for superconducting qubits. Comptes Rendus Physique, 17(7), 693–704. https://doi.org/10.1016/j.crhy.2016.07.006

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abstract = "This article reviews efforts to build a new type of quantum device, which combines an ensemble of electronic spins with long coherence times, and a small-scale superconducting quantum processor. The goal is to store over long times arbitrary qubit states in orthogonal collective modes of the spin-ensemble, and to retrieve them on-demand. We first present the protocol devised for such a multi-mode quantum memory. We then describe a series of experimental results using NV (as in nitrogen vacancy) center spins in diamond, which demonstrate its main building blocks: the transfer of arbitrary quantum states from a qubit into the spin ensemble, and the multi-mode retrieval of classical microwave pulses down to the single-photon level with a Hahn-echo like sequence. A reset of the spin memory is implemented in-between two successive sequences using optical repumping of the spins.",

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Grezesa, C, Kuboa, Y, Julsgaard, B, Umeda, T, Isoya, J, Sumiya, H, Abe, H, Onoda, S, Ohshima, T, Nakamura, K, Diniz, I, Auffeves, A, Jacques, V, Roch, J-F, Vion, D, Esteve, D, Mølmer, K & Bertet, P 2016, 'Towards a spin-ensemble quantum memory for superconducting qubits', Comptes Rendus Physique, vol. 17, no. 7, pp. 693–704. https://doi.org/10.1016/j.crhy.2016.07.006

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AU - Grezesa, Cécile

AU - Kuboa, Yuimaru

AU - Julsgaard, Brian

AU - Umeda, Takahide

AU - Isoya, Junichi

AU - Sumiya, Hitoshi

AU - Abe, Hiroshi

AU - Onoda, Shinobu

AU - Ohshima, Takeshi

AU - Nakamura, Kazuo

AU - Diniz, Igor

AU - Auffeves, Alexia

AU - Jacques, Vincent

AU - Roch, Jean-François

AU - Vion, Denis

AU - Esteve, Daniel

AU - Mølmer, Klaus

AU - Bertet, Patrice

PY - 2016/8/1

Y1 - 2016/8/1

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AB - This article reviews efforts to build a new type of quantum device, which combines an ensemble of electronic spins with long coherence times, and a small-scale superconducting quantum processor. The goal is to store over long times arbitrary qubit states in orthogonal collective modes of the spin-ensemble, and to retrieve them on-demand. We first present the protocol devised for such a multi-mode quantum memory. We then describe a series of experimental results using NV (as in nitrogen vacancy) center spins in diamond, which demonstrate its main building blocks: the transfer of arbitrary quantum states from a qubit into the spin ensemble, and the multi-mode retrieval of classical microwave pulses down to the single-photon level with a Hahn-echo like sequence. A reset of the spin memory is implemented in-between two successive sequences using optical repumping of the spins.

KW - NV centers in diamond

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KW - Superconducting qubits

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JO - Comptes Rendus Physique

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Towards a spin-ensemble quantum memory for superconducting qubits

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Keywords

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