Reference-frame-independent quantum key distribution of wavelength division multiplexing with multiple quantum channels*

Sun, Zhongqi; Han, Yahong; Dou, Tianqi; Wang, Jipeng; Li, Zhenhua; Zhou, Fen; Huang, Yuqing; Ma, Haiqiang

doi:10.1088/1674-1056/abf350

Cited by 4 publications

(4 citation statements)

References 32 publications

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“…Here, ℎ is the Planck constant, and 𝜐 Q is the optical center frequency of the quantum signal. Because both Alice and Bob transmit information to Charlie in the TF-QKD system, the noise induced by Alice's direct transmission of information to Bob is twice as much, [39] thus the coefficient of Eq. ( 7) is 4.…”

Section: Charlie Receives the Incoming Pulses Sent By Al-mentioning

confidence: 99%

Twin-Field Quantum Key Distribution Protocol Based on Wavelength-Division-Multiplexing Technology

Han¹,

Sun²,

Dou³

et al. 2022

Chinese Phys. Lett.

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Quantum key distribution (QKD) generates information-theoretical secret keys between two parties based on the physical laws of quantum mechanics. With the development of quantum communication network, it is feasible and economical to combine QKD with classical optical communication through the same fiber by using dense wavelength division multiplexing (DWDM) technology. In this paper, a detail scheme of TF-QKD protocol with DWDM technology is proposed and the performance is analyzed, which takes the influence of quantum channel number and adjacent quantum crosstalk on the secret key rates into considering. The simulation results show that the scheme further increases the secret key rate of TF-QKD and its variants. Therefore, this scheme provides a method to improve the secret key rate for practical quantum networks.

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Section: Charlie Receives the Incoming Pulses Sent By Al-mentioning

confidence: 99%

Twin-Field Quantum Key Distribution Protocol Based on Wavelength-Division-Multiplexing Technology

Han¹,

Sun²,

Dou³

et al. 2022

Chinese Phys. Lett.

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“…Wavelength division multiplexer (WDM), [26] a technology that multiplexes signals and transmits them in the same fibre, can solve this problem well. It has also been shown in numerous experiments [27][28][29][30][31] that WDM technology can be applied to QKD systems to send more signals over the same transmission distance to effectively increase the key transmission rate. What's more, WDM technology can combine two QKD systems to improve the secret key rate.…”

Section: Introductionmentioning

confidence: 99%

Performance of phase-matching quantum key distribution based on wavelength division multiplexing technology

Ma¹,

Han²,

Dou³

et al. 2023

Chinese Phys. B

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Quantum key distribution (QKD) generates information-theoretical secure keys between two parties based on the physical laws of quantum mechanics. The Phase-Matching (PM) QKD protocol allows the key rate to break the quantum channel secret key capacity limit without quantum repeaters, and the security of the protocol is demonstrated by using equivalent entanglement. In this paper, the Wavelength Division Multiplexing (WDM) technique is applied to the PM-QKD protocol considering the effect of crosstalk noise on the secret key rate. The performance of PM-QKD protocol based on WDM with the influence of adjacent classical channels and Raman scattering is analyzed by numerical simulations to maximize the total secert key rate of the QKD, providing a reference for future implementations of QKD based on WDM techniques.

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“…[1] QKD can distribute secure keys between two remote participants. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] Besides QKD, there are some important branches in the field of quantum communication, such as quantum secret sharing (QSS), [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] and quantum secure direct communication (QSDC). [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49] QSS was first proposed by Hillery et al in 1999 [18] based on quantum ...…”

Section: Introductionmentioning

confidence: 99%

Measurement-device-independent quantum secret sharing with hyper-encoding

Zhong

Sheng

et al. 2022

Chinese Phys. B

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Quantum secret sharing (QSS) is a typical multi-party quantum communication mode, in which the key sender splits a key into several parts and the participants can obtain the key by cooperation. Measurement-device-independent quantum secret sharing (MDI-QSS) is immune to all possible attacks from measurement devices and can greatly enhance QSS’s security in practical application. However, previous MDI-QSS’s key generation rate is relatively low. In our paper, we adopt the spatial-mode-polarization hyper-encoding technology in the MDI-QSS, which can increase single photon’s channel capacity. Meanwhile, we use the cross-Kerr nonlinearity to realize the complete hyperentangled Greenberger-Horne-Zeilinger state analysis. Both above factors can increase MDI-QSS’s key generation rate by about 103. The proposed hyper-encoded MDI-QSS protocol may be useful for future multiparity quantum communication application.

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Reference-frame-independent quantum key distribution of wavelength division multiplexing with multiple quantum channels*

Cited by 4 publications

References 32 publications

Twin-Field Quantum Key Distribution Protocol Based on Wavelength-Division-Multiplexing Technology

Twin-Field Quantum Key Distribution Protocol Based on Wavelength-Division-Multiplexing Technology

Performance of phase-matching quantum key distribution based on wavelength division multiplexing technology

Measurement-device-independent quantum secret sharing with hyper-encoding

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