Simultaneous two-way classical communication and measurement-device-independent quantum key distribution with coherent states
Simultaneous two-way classical communication and measurement-device-independent quantum key distribution with coherent states
Simultaneous quantum and classical communication integrates both continuous variable quantum key distribution and classical coherent optical communication by using the same communication infrastructure. Given its compelling benefits, we proposed a protocol relying on both two-way classical communication and on measurement-device-independent quantum key distribution, in which the superposition modulation based coherent states depend on the information bits of both the secret key and on the classical communication ciphertext, which are measured by an untrusted relay node. The proposed scheme strikes a beneficial balance between its level of security and its grade of practicability. Explicitly, on the one hand, the secret key obtained is secure against all attacks on the detectors, and it is eminently suitable for bidirectional classical communication in the metropolitan network as a benefit of its relay-based configuration. Our results show a convincing bit error rate vs. secret key rate trade-off for transmission over dozens of kilometers in the quantum channel, hence striking an excellent integrity (bit error rate) vs. security trade-off.
Pan, Dong
64e38da3-e0f9-4305-a459-ce24a13e3fba
Ng, Soon
e19a63b0-0f12-4591-ab5f-554820d5f78c
Ruan, Dong
02a64719-cf38-4c89-9d8c-1f458b49ec1f
Yin, Liuguo
05f646db-3f47-4c5e-b3a7-3d9ae99c460c
Long, Guilu
dfe5d5dd-4d67-4885-8fba-d80005f7b343
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
27 January 2020
Pan, Dong
64e38da3-e0f9-4305-a459-ce24a13e3fba
Ng, Soon
e19a63b0-0f12-4591-ab5f-554820d5f78c
Ruan, Dong
02a64719-cf38-4c89-9d8c-1f458b49ec1f
Yin, Liuguo
05f646db-3f47-4c5e-b3a7-3d9ae99c460c
Long, Guilu
dfe5d5dd-4d67-4885-8fba-d80005f7b343
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Pan, Dong, Ng, Soon, Ruan, Dong, Yin, Liuguo, Long, Guilu and Hanzo, Lajos
(2020)
Simultaneous two-way classical communication and measurement-device-independent quantum key distribution with coherent states.
Physical Review A, 101 (1), [012343].
(doi:10.1103/PhysRevA.101.012343).
Abstract
Simultaneous quantum and classical communication integrates both continuous variable quantum key distribution and classical coherent optical communication by using the same communication infrastructure. Given its compelling benefits, we proposed a protocol relying on both two-way classical communication and on measurement-device-independent quantum key distribution, in which the superposition modulation based coherent states depend on the information bits of both the secret key and on the classical communication ciphertext, which are measured by an untrusted relay node. The proposed scheme strikes a beneficial balance between its level of security and its grade of practicability. Explicitly, on the one hand, the secret key obtained is secure against all attacks on the detectors, and it is eminently suitable for bidirectional classical communication in the metropolitan network as a benefit of its relay-based configuration. Our results show a convincing bit error rate vs. secret key rate trade-off for transmission over dozens of kilometers in the quantum channel, hence striking an excellent integrity (bit error rate) vs. security trade-off.
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Accepted/In Press date: 30 October 2019
e-pub ahead of print date: 27 January 2020
Published date: 27 January 2020
Additional Information:
Funding Information:
We acknowledge the helpful discussions with H. X. Ma, P. Huang, and Z. Chen. D.P., D.R., L.G.Y., and G.L.L. are supported by the National Key Research and Development Program of China under Grant No. 2017YFA0303700, the Key Research and Development Program of Guangdong province under Grant No. 2018B030325002, the National Natural Science Foundation of China under Grant No. 11974205, and the Beijing Advanced Innovation Center for Future Chip (ICFC). D.P. was also supported by the China Scholarship Council (CSC Grant No. 201806210237). S.X.N. and L.H. would like to acknowledge the financial support of the Engineering and Physical Sciences Research Council Projects No. EP/Noo4558/1 and No. EP/PO34284/1, No. COALESCE of the Royal Society's Global Challenges Research Fund Grant, as well as the European Research Council's Advanced Fellow Grant QuantCom.
Publisher Copyright:
© 2020 American Physical Society.
Identifiers
Local EPrints ID: 435473
URI: http://eprints.soton.ac.uk/id/eprint/435473
ISSN: 1050-2947
PURE UUID: 8736c92e-b3ef-4816-b835-55bb6627a9df
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Date deposited: 07 Nov 2019 17:30
Last modified: 18 Mar 2024 02:48
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Contributors
Author:
Dong Pan
Author:
Soon Ng
Author:
Dong Ruan
Author:
Liuguo Yin
Author:
Guilu Long
Author:
Lajos Hanzo
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