On the Discretized Gaussian Modulation (DGM)- Based Continuous Variable-QKD

Ivan B. Djordjevic

doi:10.1109/ACCESS.2019.2917587

On the Discretized Gaussian Modulation (DGM)- Based Continuous Variable-QKD

Ivan B. Djordjevic

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

To overcome the low reconciliation efficiency problem of Gaussian modulation (GM)-based-continuous variable (CV)-quantum key distribution (QKD), in this paper, we propose to use discretized GM (DGM)-based-CV-QKD. The proposed CV-QKD scheme has complexity and reconciliation efficiency similar to that of discrete modulation (DM)-based-CV-QKD and at the same time solves for the problem of the nonexistence of strict security proofs for the DM-CV-QKD under the collective attacks. We demonstrate that the 32-points-based DGM CV-QKD can closely approach the theoretical SKR-limit in medium and high channel losses regimes. On the other hand, the 64-points-based DGM CV-QKD scheme closely approaches the SKR-limit for all channel losses.

Original language	English (US)
Article number	8717649
Pages (from-to)	65342-65346
Number of pages	5
Journal	IEEE Access
Volume	7
DOIs	https://doi.org/10.1109/ACCESS.2019.2917587
State	Published - 2019

Keywords

Gaussian modulation
Quantum communication
continuous variable (CV)-QKD
discrete modulation
information reconciliation
quantum key distribution (QKD)
secret-key rate (SKR)

ASJC Scopus subject areas

Computer Science(all)
Materials Science(all)
Engineering(all)

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title = "On the Discretized Gaussian Modulation (DGM)- Based Continuous Variable-QKD",

abstract = "To overcome the low reconciliation efficiency problem of Gaussian modulation (GM)-based-continuous variable (CV)-quantum key distribution (QKD), in this paper, we propose to use discretized GM (DGM)-based-CV-QKD. The proposed CV-QKD scheme has complexity and reconciliation efficiency similar to that of discrete modulation (DM)-based-CV-QKD and at the same time solves for the problem of the nonexistence of strict security proofs for the DM-CV-QKD under the collective attacks. We demonstrate that the 32-points-based DGM CV-QKD can closely approach the theoretical SKR-limit in medium and high channel losses regimes. On the other hand, the 64-points-based DGM CV-QKD scheme closely approaches the SKR-limit for all channel losses.",

keywords = "Gaussian modulation, Quantum communication, continuous variable (CV)-QKD, discrete modulation, information reconciliation, quantum key distribution (QKD), secret-key rate (SKR)",

author = "Djordjevic, {Ivan B.}",

note = "Funding Information: This work was supported by the ONR MURI program under Grant N00014-13-1-0627. Publisher Copyright: {\textcopyright} 2013 IEEE.",

year = "2019",

doi = "10.1109/ACCESS.2019.2917587",

language = "English (US)",

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journal = "IEEE Access",

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AU - Djordjevic, Ivan B.

PY - 2019

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N2 - To overcome the low reconciliation efficiency problem of Gaussian modulation (GM)-based-continuous variable (CV)-quantum key distribution (QKD), in this paper, we propose to use discretized GM (DGM)-based-CV-QKD. The proposed CV-QKD scheme has complexity and reconciliation efficiency similar to that of discrete modulation (DM)-based-CV-QKD and at the same time solves for the problem of the nonexistence of strict security proofs for the DM-CV-QKD under the collective attacks. We demonstrate that the 32-points-based DGM CV-QKD can closely approach the theoretical SKR-limit in medium and high channel losses regimes. On the other hand, the 64-points-based DGM CV-QKD scheme closely approaches the SKR-limit for all channel losses.

AB - To overcome the low reconciliation efficiency problem of Gaussian modulation (GM)-based-continuous variable (CV)-quantum key distribution (QKD), in this paper, we propose to use discretized GM (DGM)-based-CV-QKD. The proposed CV-QKD scheme has complexity and reconciliation efficiency similar to that of discrete modulation (DM)-based-CV-QKD and at the same time solves for the problem of the nonexistence of strict security proofs for the DM-CV-QKD under the collective attacks. We demonstrate that the 32-points-based DGM CV-QKD can closely approach the theoretical SKR-limit in medium and high channel losses regimes. On the other hand, the 64-points-based DGM CV-QKD scheme closely approaches the SKR-limit for all channel losses.

KW - Gaussian modulation

KW - Quantum communication

KW - continuous variable (CV)-QKD

KW - discrete modulation

KW - information reconciliation

KW - quantum key distribution (QKD)

KW - secret-key rate (SKR)

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On the Discretized Gaussian Modulation (DGM)- Based Continuous Variable-QKD

Abstract

Keywords

ASJC Scopus subject areas

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