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Quantum teleportation from a propagating photon to a solid-state spin qubit

Author

Listed:
  • W.B. Gao

    (Institute of Quantum Electronics, ETH Zurich)

  • P. Fallahi

    (Institute of Quantum Electronics, ETH Zurich)

  • E. Togan

    (Institute of Quantum Electronics, ETH Zurich)

  • A. Delteil

    (Institute of Quantum Electronics, ETH Zurich)

  • Y.S. Chin

    (Institute of Quantum Electronics, ETH Zurich)

  • J. Miguel-Sanchez

    (Institute of Quantum Electronics, ETH Zurich)

  • A. Imamoğlu

    (Institute of Quantum Electronics, ETH Zurich)

Abstract

A quantum interface between a propagating photon used to transmit quantum information and a long-lived qubit used for storage is of central interest in quantum information science. A method for implementing such an interface between dissimilar qubits is quantum teleportation. Here we experimentally demonstrate transfer of quantum information carried by a photon to a semiconductor spin using quantum teleportation. In our experiment, a single photon in a superposition state is generated using resonant excitation of a neutral dot. To teleport this photonic qubit, we generate an entangled spin–photon state in a second dot located 5 m away and interfere the photons from the two dots in a Hong-Ou-Mandel set-up. Thanks to an unprecedented degree of photon-indistinguishability, a coincidence detection at the output of the interferometer heralds successful teleportation, which we verify by measuring the resulting spin state after prolonging its coherence time by optical spin-echo.

Suggested Citation

  • W.B. Gao & P. Fallahi & E. Togan & A. Delteil & Y.S. Chin & J. Miguel-Sanchez & A. Imamoğlu, 2013. "Quantum teleportation from a propagating photon to a solid-state spin qubit," Nature Communications, Nature, vol. 4(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3744
    DOI: 10.1038/ncomms3744
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    Cited by:

    1. Dario Lago-Rivera & Jelena V. Rakonjac & Samuele Grandi & Hugues de Riedmatten, 2023. "Long distance multiplexed quantum teleportation from a telecom photon to a solid-state qubit," Nature Communications, Nature, vol. 14(1), pages 1-6, December.

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