NDLI: Round-robin differential quadrature phase-shift quantum key distribution

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Round-robin differential quadrature phase-shift quantum key distribution

Content Provider	Scilit
Author	Zhou, Chun Zhang, Ying-Ying Bao, Wan-Su Li, Hong-Wei Wang, Yang Jiang, Mu-Sheng
Copyright Year	2017
Description	Journal: Chinese Physics B Recently, a round-robin differential phase-shift (RRDPS) protocol was proposed [Nature 509, 475 (2014)], in which the amount of leakage is bounded without monitoring the signal disturbance. Introducing states of the phase-encoded Bennett–Brassard 1984 protocol (PE-BB84) to the RRDPS, this paper presents another quantum key distribution protocol called round-robin differential quadrature phase-shift (RRDQPS) quantum key distribution. Regarding a train of many pulses as a single packet, the sender modulates the phase of each pulse by one of {0, π/2, π, 3π/2}, then the receiver measures each packet with a Mach–Zehnder interferometer having a phase basis of 0 or π/2. The RRDQPS protocol can be implemented with essential similar hardware to the PE-BB84, so it has great compatibility with the current quantum system. Here we analyze the security of the RRDQPS protocol against the intercept-resend attack and the beam-splitting attack. Results show that the proposed protocol inherits the advantages arising from the simplicity of the RRDPS protocol and is more robust against these attacks than the original protocol.
Related Links	http://iopscience.iop.org/article/10.1088/1674-1056/26/2/020303/pdf
ISSN	16741056
e-ISSN	20583834
DOI	10.1088/1674-1056/26/2/020303
Journal	Chinese Physics B
Issue Number	2
Volume Number	26
Language	English
Publisher	IOP Publishing
Publisher Date	2017-02-01
Access Restriction	Open
Subject Keyword	Journal: Chinese Physics B Public, Environmental and Occupational Health Protocol Was Proposed
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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