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Entanglement in a solid-state spin ensemble

Author

Listed:
  • Stephanie Simmons

    (Oxford University, Oxford OX1 3PH, UK)

  • Richard M. Brown

    (Oxford University, Oxford OX1 3PH, UK)

  • Helge Riemann

    (Leibniz-Institut für Kristallzüchtung, 12489 Berlin, Germany)

  • Nikolai V. Abrosimov

    (Leibniz-Institut für Kristallzüchtung, 12489 Berlin, Germany)

  • Peter Becker

    (PTB Braunschweig, 38116 Braunschweig, Germany)

  • Hans-Joachim Pohl

    (VITCON Projectconsult GmbH, 07743 Jena, Germany)

  • Mike L. W. Thewalt

    (Simon Fraser University)

  • Kohei M. Itoh

    (School of Fundamental Science and Technology, Keio University, Yokohama, 3-14-1 Hiyoshi, 223-8522, Japan)

  • John J. L. Morton

    (Oxford University, Oxford OX1 3PH, UK
    CAESR, Clarendon Laboratory, Oxford University)

Abstract

Ensemble entanglement Spin ensembles, such as those used in liquid-state nuclear magnetic resonance, have been important for the development of quantum control methods. But these demonstrations contained no entanglement, an essential element for a quantum information processor. Simmons et al. now report the on-demand generation of entanglement between an ensemble of electron and nuclear spins in phosphorus-doped silicon, simultaneously creating ten billion spin pairs with high fidelity. This fulfils one of the essential requirements for a silicon-based quantum information processor.

Suggested Citation

  • Stephanie Simmons & Richard M. Brown & Helge Riemann & Nikolai V. Abrosimov & Peter Becker & Hans-Joachim Pohl & Mike L. W. Thewalt & Kohei M. Itoh & John J. L. Morton, 2011. "Entanglement in a solid-state spin ensemble," Nature, Nature, vol. 470(7332), pages 69-72, February.
    • Handle: RePEc:nat:nature:v:470:y:2011:i:7332:d:10.1038_nature09696
    DOI: 10.1038/nature09696
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    Cited by:

    1. Wonjin Jang & Jehyun Kim & Jaemin Park & Gyeonghun Kim & Min-Kyun Cho & Hyeongyu Jang & Sangwoo Sim & Byoungwoo Kang & Hwanchul Jung & Vladimir Umansky & Dohun Kim, 2023. "Wigner-molecularization-enabled dynamic nuclear polarization," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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