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Demonstration of a quantum teleportation network for continuous variables

Author

Listed:
  • Hidehiro Yonezawa

    (The University of Tokyo
    Japan Science and Technology Agency)

  • Takao Aoki

    (The University of Tokyo
    Japan Science and Technology Agency)

  • Akira Furusawa

    (The University of Tokyo
    Japan Science and Technology Agency)

Abstract

Quantum teleportation1,2,3,4,5,6,7,8 involves the transportation of an unknown quantum state from one location to another, without physical transfer of the information carrier. Although quantum teleportation is a naturally bipartite process, it can be extended to a multipartite protocol known as a quantum teleportation network9. In such a network, entanglement is shared between three or more parties. For the case of three parties (a tripartite network), teleportation of a quantum state can occur between any pair, but only with the assistance of the third party. Multipartite quantum protocols are expected to form fundamental components for larger-scale quantum communication and computation10,11. Here we report the experimental realization of a tripartite quantum teleportation network for quantum states of continuous variables (electromagnetic field modes). We demonstrate teleportation of a coherent state between three different pairs in the network, unambiguously demonstrating its tripartite character.

Suggested Citation

  • Hidehiro Yonezawa & Takao Aoki & Akira Furusawa, 2004. "Demonstration of a quantum teleportation network for continuous variables," Nature, Nature, vol. 431(7007), pages 430-433, September.
    • Handle: RePEc:nat:nature:v:431:y:2004:i:7007:d:10.1038_nature02858
    DOI: 10.1038/nature02858
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    Cited by:

    1. Ali, Md. Manirul & Dinakaran, Rohith & Radhakrishnan, Chandrashekar, 2023. "Coherence crossover dynamics in the strong coupling regime," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 614(C).
    2. Hugo Molinares & Bing He & Vitalie Eremeev, 2023. "Transfer of Quantum States and Stationary Quantum Correlations in a Hybrid Optomechanical Network," Mathematics, MDPI, vol. 11(13), pages 1-18, June.
    3. Jie Zhao & Hao Jeng & Lorcán O. Conlon & Spyros Tserkis & Biveen Shajilal & Kui Liu & Timothy C. Ralph & Syed M. Assad & Ping Koy Lam, 2023. "Enhancing quantum teleportation efficacy with noiseless linear amplification," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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