Round Robin Differential Phase Shift Quantum Key Distribution Protocol Based on Heralded Single Photon Source and Detector Decoy State

Kang, 胡 康 Hu; Qianping, 毛钱萍 Mao; Shengmei, 赵生妹 Zhao

doi:10.3788/aos201737.0527002

Cited by 3 publications

(1 citation statement)

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“…Up to now, there are a lot of published works concerning the RRDPS-QKD protocol [15][16][17][18][19][20][21][22][23][24]. The RRDPS-QKD protocol with the heralded pair-coherent source [20], the one with a passive decoy state method [21], and the one with a combination of the wavelength division multiplexing technique and the orbital angular momentum (OAM) theory [24] were demonstrated to improve both the key rate and the transmission distance greatly.…”

Section: Introductionmentioning

confidence: 99%

Efficient quantum key distribution based on hybrid degrees of freedom

2019

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Round-robin differential-phase-shift (RRDPS) quantum key distribution (QKD) protocol is a practical QKD protocol without monitoring the signal disturbance. However, how to further increase the secure key rate is still a challenge in practice. In the paper, we propose a high efficient QKD protocol based on RRDPS-QKD, where the photon-states are encoded in two degrees of freedom (DOFs), phase and polarization. The key generation rate and the security of the proposal protocol are analyzed. The simulation results show that the secure key rate is greatly improved in comparison with the original RRDPS-QKD protocol by breaking the limitation of quantum state in a single DOF. Moreover, our protocol can still maintain the high error tolerance of RRDPS-QKD protocol.

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Section: Introductionmentioning

confidence: 99%

Efficient quantum key distribution based on hybrid degrees of freedom

2019

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Decoy-state round-robin differential-phase-shift quantum key distribution with source errors

Mao

Wang

Zhao

2019

Quantum Inf Process

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As a promising quantum key distribution (QKD), most of the existing round-robin differential-phase-shift quantum key distribution (RRDPS-QKD) protocols have adopted the decoy-state method and have assumed the source states are exactly controlled. However, the precise manipulation of source states is impossible for any practical experiment, and the RRDPS-QKD with source errors has an unignorable impact on the performance of the protocol. In the paper, we study the three-intensity decoy-state RRDPS-QKD protocol with source errors, formulate the secure generation key rate of the proposed protocol, do the numerical simulations to testify the deductions. The results show that our evaluation can estimate the influence of source errors. 2 Qian-Ping Mao et al.

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Plug-and-play round-robin differential phase-shift quantum key distribution

Mao

Wang

Zhao

2017

Sci Rep

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The round-robin differential-phase-shift quantum key distribution (RRDPS-QKD) protocol could provide an effective way to estimate the leakage information without monitoring the signal disturbance. Moreover, the self-compensating property of plug-and-play (P&P) setup can eliminate the variations of phase or polarization in QKD procedure. In the paper, we introduce the P&P concept into RRDPS-QKD, and propose a QKD protocol, named P&P RRDPS-QKD protocol, to make the RRDPS-QKD scheme more practical. We analyze the security, and discuss the key generation rate with infinite-intensity decoy state method. The results show that the proposed protocol is a good solution to RRDPS-QKD protocol with untrusted sources. It has a high security and its key generation rate could be as good as the protocol with trusted sources when the average input photon number N is greater than 106. In addition, the proposed protocol has a high noise tolerance in comparison with P&P BB84-QKD protocol.

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Round Robin Differential Phase Shift Quantum Key Distribution Protocol Based on Heralded Single Photon Source and Detector Decoy State

Cited by 3 publications

References 0 publications

Efficient quantum key distribution based on hybrid degrees of freedom

Efficient quantum key distribution based on hybrid degrees of freedom

Decoy-state round-robin differential-phase-shift quantum key distribution with source errors

Plug-and-play round-robin differential phase-shift quantum key distribution

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