TY - JOUR
T1 - FBG-Based Weak Coherent State and Entanglement-Assisted Multidimensional QKD
AU - Djordjevic, Ivan B.
N1 - Funding Information:
Manuscript received June 10, 2018; revised July 23, 2018; accepted July 24, 2018. Date of publication July 26, 2018; date of current version August 10, 2018. This work was supported in part by the MURI Office of Naval Research Project N00014-13-1-0627. (e-mail: ivan@email.arizona.edu).
Publisher Copyright:
© 2009-2012 IEEE.
PY - 2018/8
Y1 - 2018/8
N2 - In this paper, we propose several fiber Bragg gratings (FBGs) based on both weak coherent state (WCS) and entanglement-assisted (EA) multidimensional QKD (MQKD) protocols with mutually unbiased bases (MUBs) derived from the complex Hadamard matrices. We also propose how to implement them by using FBGs with orthogonal impulse responses, derived from Slepian sequences. The proposed FBG-based protocols are capable of simultaneously achieving unprecedented spectral efficiency and secret-key rates in long-distance quantum communication. Regarding the WCS protocols, random base selection and FGB-MUB-based protocols are introduced. Regarding EA protocols, we introduce a generic class of FBG-based N-dimensional protocols and describe the corresponding FBG-based encoders and decoders. The security analysis of the proposed MQKD protocols is further performed by taking into account FBG fabrication imperfections, modeled by the L-neighbor model. It has been shown that the proposed MQKD protocols significantly outperform the conventional two-dimensional QKD protocols, and impose less stringent bandwidth requirements compared to multidimensional time-frequency and time-bin protocols.
AB - In this paper, we propose several fiber Bragg gratings (FBGs) based on both weak coherent state (WCS) and entanglement-assisted (EA) multidimensional QKD (MQKD) protocols with mutually unbiased bases (MUBs) derived from the complex Hadamard matrices. We also propose how to implement them by using FBGs with orthogonal impulse responses, derived from Slepian sequences. The proposed FBG-based protocols are capable of simultaneously achieving unprecedented spectral efficiency and secret-key rates in long-distance quantum communication. Regarding the WCS protocols, random base selection and FGB-MUB-based protocols are introduced. Regarding EA protocols, we introduce a generic class of FBG-based N-dimensional protocols and describe the corresponding FBG-based encoders and decoders. The security analysis of the proposed MQKD protocols is further performed by taking into account FBG fabrication imperfections, modeled by the L-neighbor model. It has been shown that the proposed MQKD protocols significantly outperform the conventional two-dimensional QKD protocols, and impose less stringent bandwidth requirements compared to multidimensional time-frequency and time-bin protocols.
KW - Entanglement assisted MQKD protocols
KW - Fiber Bragg gratings (FBGs)
KW - Multidimensional QKD (MQKD)
KW - Quantum key distribution (QKD)
KW - Weak coherent state-based MQKD protocols
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U2 - 10.1109/JPHOT.2018.2860524
DO - 10.1109/JPHOT.2018.2860524
M3 - Article
AN - SCOPUS:85050603154
VL - 10
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
SN - 1943-0655
IS - 4
M1 - 8421008
ER -