Secret Key Distribution Using Differential-Phase-Shift Keyed Macroscopic Coherent Light

Kyo Inoue; Kyo Inoue; Kyo Inoue; Shusaku Hayashi; Shusaku Hayashi

Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies
OSA Technical Digest (CD) (Optica Publishing Group, 2007),
paper QML7

Secret Key Distribution Using Differential-Phase-Shift Keyed Macroscopic Coherent Light

Kyo Inoue and Shusaku Hayashi

Quantum Electronics and Laser Science Conference 2007

Baltimore, Maryland United States
6–11 May 2007
ISBN: 1557528349

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Quantum Key Distribution (QML)

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K. Inoue and S. Hayashi, "Secret Key Distribution Using Differential-Phase-Shift Keyed Macroscopic Coherent Light," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optica Publishing Group, 2007), paper QML7.

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Abstract

A quantum key distribution scheme utilizing quantum noise is proposed. It uses macroscopic coherent light that is phase-modulated by {−δ, δ} and direct differential detection. It has possibility for high data rate.

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