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Experimental demonstration of a BDCZ quantum repeater node

Author

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  • Zhen-Sheng Yuan

    (Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Philosophenweg 12, 69120 Heidelberg, Germany
    University of Science and Technology of China, Hefei, Anhui 230026, China)

  • Yu-Ao Chen

    (Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Philosophenweg 12, 69120 Heidelberg, Germany
    University of Science and Technology of China, Hefei, Anhui 230026, China)

  • Bo Zhao

    (Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Philosophenweg 12, 69120 Heidelberg, Germany)

  • Shuai Chen

    (Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Philosophenweg 12, 69120 Heidelberg, Germany)

  • Jörg Schmiedmayer

    (Atominstitut der Österreichischen Universitäten, TU-Wien, A-1020 Vienna, Austria)

  • Jian-Wei Pan

    (Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Philosophenweg 12, 69120 Heidelberg, Germany
    University of Science and Technology of China, Hefei, Anhui 230026, China)

Abstract

Quantum communication: repeat performance At distances beyond about 100 km, quantum communication fails due to photon losses in the transmission channel. To overcome this problem, Briegel, Dür, Cirac and Zoller (BDCZ) introduced the concept of quantum repeaters, combining entanglement swapping and quantum memory to efficiently extend the achievable distances. Their implementation has proved challenging due to the difficulty of integrating a quantum memory. Zhen-ShengYuan et al. realize a building block of the BDCZ quantum repeater, demonstrating entanglement swapping with storage and retrieval of light from atomic quantum memories.

Suggested Citation

  • Zhen-Sheng Yuan & Yu-Ao Chen & Bo Zhao & Shuai Chen & Jörg Schmiedmayer & Jian-Wei Pan, 2008. "Experimental demonstration of a BDCZ quantum repeater node," Nature, Nature, vol. 454(7208), pages 1098-1101, August.
    • Handle: RePEc:nat:nature:v:454:y:2008:i:7208:d:10.1038_nature07241
    DOI: 10.1038/nature07241
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    Cited by:

    1. Ming-Hao Jiang & Wenyi Xue & Qian He & Yu-Yang An & Xiaodong Zheng & Wen-Jie Xu & Yu-Bo Xie & Yanqing Lu & Shining Zhu & Xiao-Song Ma, 2023. "Quantum storage of entangled photons at telecom wavelengths in a crystal," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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