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5 March 2018 Proof-of-principle experiment of measurement-device-independent quantum key distribution with vector vortex beams
Chen Dong, Shang-Hong Zhao, Wei Li, Jian Yang
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Proceedings Volume 10710, Young Scientists Forum 2017; 107100G (2018) https://doi.org/10.1117/12.2317075
Event: Young Scientists Forum 2017, 2017, Shanghai, China
Abstract
In this paper, by combining measurement-device-independent quantum key distribution (MDI-QKD) scheme with entangled photon sources, we present a modified MDI-QKD scheme with pairs of vector vortex(VV) beams, which shows a structure of hybrid entangled entanglement corresponding to intrasystem entanglement and intersystem entanglement. The former entanglement, which is entangled between polarization and orbit angular momentum within each VV beam, is adopted to overcome the polarization misalignment associated with random rotations in quantum key distribution. The latter entanglement, which is entangled between the two VV beams, is used to perform entangled-based MDI-QKD protocol with pair of VV beams to inherit the merit of long distance. The numerical simulations show that our modified scheme can tolerate 97dB with practical detectors. Furthermore, our modified protocol only needs to insert q-plates in practical experiment.
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Chen Dong, Shang-Hong Zhao, Wei Li, and Jian Yang "Proof-of-principle experiment of measurement-device-independent quantum key distribution with vector vortex beams", Proc. SPIE 10710, Young Scientists Forum 2017, 107100G (5 March 2018); https://doi.org/10.1117/12.2317075
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KEYWORDS
Polarization
Quantum key distribution
Quantum communications
Computer programming
Photon polarization
Relays
Sensors
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