Orbital angular momentum multiplexed deterministic all-optical quantum teleportation

Shengshuai Liu, Yanbo Lou and Jietai Jing ()
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Shengshuai Liu: East China Normal University
Yanbo Lou: East China Normal University
Jietai Jing: East China Normal University

Nature Communications, 2020, vol. 11, issue 1, 1-8

Abstract: Abstract Quantum teleportation is one of the most essential protocol in quantum information. In addition to increasing the scale of teleportation distance, improving its information transmission capacity is also vital importance for its practical applications. Recently, the orbital angular momentum (OAM) of light has attracted wide attention as an important degree of freedom for realizing multiplexing to increase information transmission capacity. Here we show that by utilizing the OAM multiplexed continuous variable entanglement, 9 OAM multiplexed channels of parallel all-optical quantum teleportation can be deterministically established in experiment. More importantly, our parallel all-optical quantum teleportation scheme can teleport OAM-superposition-mode coded coherent state, which demonstrates the teleportation of more than one optical mode with fidelity beating the classical limit and thus ensures the increase of information transmission capacity. Our results open the avenue for deterministically implementing parallel quantum communication protocols and provide a promising paradigm for constructing high-capacity all-optical quantum communication networks.

Date: 2020
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DOI: 10.1038/s41467-020-17616-4

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