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Free-Space Quantum Teleportation with Orbital Angular Momentum Multiplexed Continuous Variable Entanglement

Author

Listed:
  • Xinchao Ruan

    (School of Automation, Central South University, Changsha 410083, China)

  • Hang Zhang

    (School of Automation, Central South University, Changsha 410083, China)

  • Wenqi Peng

    (School of Automation, Central South University, Changsha 410083, China)

  • Hui Xian

    (School of Automation, Central South University, Changsha 410083, China)

  • Yiwu Zhu

    (School of Automation, Central South University, Changsha 410083, China)

  • Wei Zhao

    (Key Laboratory of Computing Power Network and Information Security, Ministry of Education, Shandong Computer Science Center (National Supercomputer Center in Jinan), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250316, China
    Shandong Provincial Key Laboratory of Computer Networks, Shandong Fundamental Research Center for Computer Science, Jinan 250353, China)

  • Sha Xiong

    (School of Automation, Central South University, Changsha 410083, China)

Abstract

Quantum teleportation is one of the fundamental primitives of quantum cryptography. In order to achieve a wider range of high-capacity information transfer, we propose a free-space quantum teleportation (QT) protocol with orbital angular momentum (OAM) multiplexed continuous variable (CV) entangled states. The preparation of the entangled states is accomplished by the spontaneous four-wave mixing (SFWM) process occurring in a hot 85 Rb vapor cell, and the mode selection for the Bell-state measurement is achieved by employing the balanced homodyne detection technique. The fidelity of teleporting EPR entangled states carrying different topological charges via a Kolmogorov-type atmospheric turbulence channel is derived, and the superiority of enhancing the system channel capacity via OAM multiplexing is demonstrated. Our work provides a feasible scheme to implement high-capacity quantum communication in atmospheric environments.

Suggested Citation

  • Xinchao Ruan & Hang Zhang & Wenqi Peng & Hui Xian & Yiwu Zhu & Wei Zhao & Sha Xiong, 2023. "Free-Space Quantum Teleportation with Orbital Angular Momentum Multiplexed Continuous Variable Entanglement," Mathematics, MDPI, vol. 11(14), pages 1-17, July.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:14:p:3209-:d:1199635
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    References listed on IDEAS

    as
    1. I. Marcikic & H. de Riedmatten & W. Tittel & H. Zbinden & N. Gisin, 2003. "Long-distance teleportation of qubits at telecommunication wavelengths," Nature, Nature, vol. 421(6922), pages 509-513, January.
    2. Juan Yin & Ji-Gang Ren & He Lu & Yuan Cao & Hai-Lin Yong & Yu-Ping Wu & Chang Liu & Sheng-Kai Liao & Fei Zhou & Yan Jiang & Xin-Dong Cai & Ping Xu & Ge-Sheng Pan & Jian-Jun Jia & Yong-Mei Huang & Hao , 2012. "Quantum teleportation and entanglement distribution over 100-kilometre free-space channels," Nature, Nature, vol. 488(7410), pages 185-188, August.
    3. Xiao-Song Ma & Thomas Herbst & Thomas Scheidl & Daqing Wang & Sebastian Kropatschek & William Naylor & Bernhard Wittmann & Alexandra Mech & Johannes Kofler & Elena Anisimova & Vadim Makarov & Thomas J, 2012. "Quantum teleportation over 143 kilometres using active feed-forward," Nature, Nature, vol. 489(7415), pages 269-273, September.
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