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The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.

Quantum teleportation between remote atomic-ensemble quantum memories

Bao, Xiao-Hui, Xu, Xiao-Fan, Li, Che-Ming, Yuan, Zhen-Sheng, Lu, Chao-Yang, Pan, Jian-Wei·2012·Proceedings of the National Academy of Sciences
DOI 10.1073/pnas.1207329109
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Abstract

Quantum teleportation and quantum memory are two crucial elements for large-scale quantum networks. With the help of prior distributed entanglement as a “quantum channel,” quantum teleportation provides an intriguing means to faithfully transfer quantum states among distant locations without actual transmission of the physical carriers [Bennett CH, et al. (1993) Phys Rev Lett 70(13):1895–1899]. Quantum memory enables controlled storage and retrieval of fast-flying photonic quantum bits with stationary matter systems, which is essential to achieve the scalability required for large-scale quantum networks. Combining these two capabilities, here we realize quantum teleportation between two remote atomic-ensemble quantum memory nodes, each composed of ∼10 8 rubidium atoms and connected by a 150-m optical fiber. The spin wave state of one atomic ensemble is mapped to a propagating photon and subjected to Bell state measurements with another single photon that is entangled with the spin wave state of the other ensemble. Two-photon detection events herald the success of teleportation with an average fidelity of 88(7)%. Besides its fundamental interest as a teleportation between two remote macroscopic objects, our technique may be useful for quantum information transfer between different nodes in quantum networks and distributed quantum computing.

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  • Two methods can be adopted to circumvent noisy channels: increasing resilience to losses and noise with two-way classical communications, or decreasing their influence by encoding information in decoherence-free subspaces.

    “Two methods can be adopted to circumvent the issue of noisy channels: to increase the resilience of a protocol to losses and noise [380][381][382] (two-way classical communications), or to decrease their influence by encoding information in immune states (decoherence-free subspaces, DFS), for both quantum computation [383] and quantum communication tasks [384].”

    From Photonic quantum information processing: a review (2019) · cites this paper as [382]

    The Experimental details (page unavailable) describe heralded state preparation, a trigger for successful teleportation, and classical measurement results sent to node B. These support the use of classical signaling in a heralded protocol, but the paper does not establish the cited claim that two-way classical communication increases resilience to channel losses and noise. The decoherence-free-subspace alternative is attributed to other citations, not this paper. (LLM, conf=0.79)

    Experimental — accuracy not yet measured

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Research works printed but not linked: 31

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Metadata

Authors
Bao, X.-H., Xu, X.-F., Li, C.-M., Yuan, Z.-S., Lu, C.-Y., & Pan, J.-W.
Venue
Proceedings of the National Academy of Sciences
Publisher
National Academy of Sciences
Published
2012-11-09
Volume
109
Issue
50
Pages
20347-20351
ISSN
  • 0027-8424
  • 1091-6490
DOI
10.1073/pnas.1207329109
Cited by
104
References
11
Language
en

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