Measurement-device-independent quantum key distribution with a passive decoy-state method

Shan, Yu-Zhu; Sun, Shi-Hai; Ma, Xiang-Chun; Jiang, Mu-Sheng; Zhou, Yanli; Liang, Lin-Mei

doi:10.1103/physreva.90.042334

Cited by 17 publications

(11 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to ref. 29 , the lower bound of can be given where λ = X or Z and the coefficients of the total gain in each mode are and The upper bound of can be obtained with The subscripts c 0 and c 1 denote Alice or Bob prepare a signal state and a decoy state, respectively. If a subscript 0 appears, then Alice or Bob prepares a vacuum state.…”

Section: Resultsmentioning

confidence: 99%

“…we choose σ α = 5, which means the failure probability is 5.73 × 10 7 . These parameters used in our method are the same as those in the refs 12 and 29 . is the length of data in the situation that Alice has the c i mode and Bob has the c j mode, where i , j = 0 or 1.…”

Section: Resultsmentioning

confidence: 99%

“…Thus, the lower bound of and the upper bound of given by Eqs ( 9 ) and ( 12 ), respectively, can be modified to ref. 29 We can also modify the lower bound of and the upper bound of given by Eqs ( 22 ) and ( 25 ), respectively, as follows Substituting Eqs ( 29 ) and ( 30 ) into Eqs ( 7 ), ( 31 ) and ( 32 ) into Eq. ( 26 ), we can respectively estimate the key generation rate with or without intensity fluctuation in the case of finite resource in different data length.…”

Section: Resultsmentioning

confidence: 99%

“…This has been demonstrated with phase encoding mode in ref. 29 . Due to the different advantages between phase encoding and polarization encoding in practical application, we will apply the passive decoy state in MDI-QKD with polarization encoding mode 8 , 9 , 30 , 31 .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Practical passive decoy state measurement-device-independent quantum key distribution with unstable sources

Liu

Guo

Wen

2017

Sci Rep

View full text Add to dashboard Cite

Measurement-device-independent quantum key distribution (MDI-QKD) with the active decoy state method can remove all detector loopholes, and resist the imperfections of sources. But it may lead to side channel attacks and break the security of QKD system. In this paper, we apply the passive decoy state method to the MDI-QKD based on polarization encoding mode. Not only all attacks on detectors can be removed, but also the side channel attacks on sources can be overcome. We get that the MDI-QKD with our passive decoy state method can have a performance comparable to the protocol with the active decoy state method. To fit for the demand of practical application, we discuss intensity fluctuation in the security analysis of MDI-QKD protocol using passive decoy state method, and derive the key generation rate for our protocol with intensity fluctuation. It shows that intensity fluctuation has an adverse effect on the key generation rate which is non-negligible, especially in the case of small data size of total transmitting signals and long distance transmission. We give specific simulations on the relationship between intensity fluctuation and the key generation rate. Furthermore, the statistical fluctuation due to the finite length of data is also taken into account.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Practical passive decoy state measurement-device-independent quantum key distribution with unstable sources

Liu

Guo

Wen

2017

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Among the proposals on how to implement the decoy-state MDI-QKD, most of them use three intensities [29][30][31][32][33] or one intensity [34], and show poorer performance compared with that using an infinite number of decoy-states. Recently, a four-intensity decoy-state method has been proposed [35], which largely improves the key generation rate and transmission distance.…”

Section: Introductionmentioning

confidence: 98%

An enhanced proposal on decoy-state measurement device-independent quantum key distribution

Wang

Zhang

Luo

et al. 2016

Quantum Inf Process

View full text Add to dashboard Cite

By employing pulses involving three-intensity, we propose a scheme for the measurement device-independent quantum key distribution with heralded singlephoton sources. We make a comparative study of this scheme with the standard threeintensity decoy-state scheme using weak coherent sources or heralded single-photon sources. The advantage of this scheme is illustrated through numerical simulations: It can approach very closely the asymptotic case of using an infinite number of decoystates and exhibits excellent behavior in both the secure transmission distance and the final key generation rate.

show abstract

Key Expanding in Measurement-Device-Independent Quantum Key Distribution

Bebrov

2021

Int J Theor Phys

View full text Add to dashboard Cite

Measurement-device-independent quantum key distribution with a passive decoy-state method

Cited by 17 publications

References 35 publications

Practical passive decoy state measurement-device-independent quantum key distribution with unstable sources

Practical passive decoy state measurement-device-independent quantum key distribution with unstable sources

An enhanced proposal on decoy-state measurement device-independent quantum key distribution

Key Expanding in Measurement-Device-Independent Quantum Key Distribution

Contact Info

Product

Resources

About