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Conditional teleportation of quantum-dot spin states

Author

Listed:
  • Haifeng Qiao

    (University of Rochester)

  • Yadav P. Kandel

    (University of Rochester)

  • Sreenath K. Manikandan

    (University of Rochester)

  • Andrew N. Jordan

    (University of Rochester
    Chapman University)

  • Saeed Fallahi

    (Purdue University
    Purdue University)

  • Geoffrey C. Gardner

    (Purdue University
    Purdue University)

  • Michael J. Manfra

    (Purdue University
    Purdue University
    Purdue University
    Purdue University)

  • John M. Nichol

    (University of Rochester)

Abstract

Among the different platforms for quantum information processing, individual electron spins in semiconductor quantum dots stand out for their long coherence times and potential for scalable fabrication. The past years have witnessed substantial progress in the capabilities of spin qubits. However, coupling between distant electron spins, which is required for quantum error correction, presents a challenge, and this goal remains the focus of intense research. Quantum teleportation is a canonical method to transmit qubit states, but it has not been implemented in quantum-dot spin qubits. Here, we present evidence for quantum teleportation of electron spin qubits in semiconductor quantum dots. Although we have not performed quantum state tomography to definitively assess the teleportation fidelity, our data are consistent with conditional teleportation of spin eigenstates, entanglement swapping, and gate teleportation. Such evidence for all-matter spin-state teleportation underscores the capabilities of exchange-coupled spin qubits for quantum-information transfer.

Suggested Citation

  • Haifeng Qiao & Yadav P. Kandel & Sreenath K. Manikandan & Andrew N. Jordan & Saeed Fallahi & Geoffrey C. Gardner & Michael J. Manfra & John M. Nichol, 2020. "Conditional teleportation of quantum-dot spin states," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
  • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16745-0
    DOI: 10.1038/s41467-020-16745-0
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    Cited by:

    1. Liang Xiang & Jiachen Chen & Zitian Zhu & Zixuan Song & Zehang Bao & Xuhao Zhu & Feitong Jin & Ke Wang & Shibo Xu & Yiren Zou & Hekang Li & Zhen Wang & Chao Song & Alexander Yue & Justine Partridge & , 2024. "Enhanced quantum state transfer by circumventing quantum chaotic behavior," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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