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Appl. Sci. 2018, 8(8), 1312; https://doi.org/10.3390/app8081312

Multipartite Continuous Variable Quantum Conferencing Network with Entanglement in the Middle

1
School of Information Science and Engineering, Central South University, Changsha 410083, China
2
School of IOT Engineering, Taihu University, Wuxi 214064, China
*
Author to whom correspondence should be addressed.
Received: 28 June 2018 / Revised: 1 August 2018 / Accepted: 4 August 2018 / Published: 7 August 2018
(This article belongs to the Special Issue Quantum Optics and Quantum Information Processing 2018)
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Abstract

We suggest a continuous variable quantum conferencing network scheme with an entangled source in the middle. Here, the source generates a multipartite entangled state and distributes the modes of the state to an arbitrary number of legitimate network users. The entangled modes that were received and measured by the users share mutual information, which is utilized to generate secure conferencing key between users. The scheme is proven secure against collective attacks on both the untrusted source in the middle and all the quantum links. Simulation results show that the presented scheme can achieve high rate secure conferencing for 100 users within a 400 m-radius community or factory area. View Full-Text
Keywords: quantum conferencing; continuous variable; entanglement in the middle quantum conferencing; continuous variable; entanglement in the middle
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Zhang, Z.; Shi, R.; Guo, Y. Multipartite Continuous Variable Quantum Conferencing Network with Entanglement in the Middle. Appl. Sci. 2018, 8, 1312.

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