Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Differential phase-time shifting protocol for QKD (DPTS)

Mario A. Usuga Castaneda, Davide Bacco, Jesper B. Christensen, Yunhong Ding, Karsten K. Rottwitt, Leif Katsuo Oxenløwe

Published Jan 1, 2016• 0 citations
OpenAlex

Abstract

We explore the implementation of a novel protocol for fiber-based high-dimensional quantum key distribution (QKD) which improves over the traditional DPS-QKD and COW protocols.

Related papers

Differential-Phase-Shift Quantum Key Distribution

Kyo Inoue, Hiroki Takesue, Toshimori Honjo

A novel type of quantum key distribution (QKD) protocol called differential-phase-shift (DPS) QKD is described. It utilizes a weak coherent pulse train instead of individual photons as in conventional QKD

IEEE/LEOS Summer Topical Meetings•Sep 22, 2006•10 citations

DPS Quantum Key Distribution System

Kyo Inoue

Differential-phase-shift (DPS) quantum key distribution (QKD) is one scheme of quantum key distribution whose security is based on the quantum nature of lightwave. This protocol features simplicity, a high key creation rate, and robustness against photon-number-splitting attacks. We describe DPS-QKD in this paper, including its setup and operation, eavesdropping against DPS-QKD, system performance, and modified systems to improve the system performance.

IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences•Jan 1, 2010•1 citation

A fiber-based differential phase shift quantum key distribution scheme with higher key creation efficiency

Huani Zhang, Jindong Wang, Xiaobao Liu +2 more

Optics Communications•Apr 17, 2009•5 citations

Differential Phase-Shift Quantum Key Distribution Systems

Kyo Inoue

Differential phase-shift (DPS) quantum key distribution (QKD) is a unique QKD protocol that is different from traditional ones, featuring simplicity and practicality. This paper overviews DPS-QKD systems.

IEEE Journal of Selected Topics in Quantum Electronics•Sep 26, 2014•35 citations

A free-space-based differential phase shift quantum key distribution scheme with higher key creation efficiency

Jindong Wang, Xiaojuan Qin, Huani Zhang +3 more

Optics Communications•May 28, 2009•10 citations

Experimental demonstration of the DPTS QKD protocol over a 170 km fiber link

Beatrice Da Lio, Davide Bacco, Daniele Cozzolino +4 more

Quantum key distribution (QKD) is a promising technology that aims to solve the security problem arising from the advent of quantum computers. While the main theoretical aspects are well developed today, limited performances, in terms of the achievable link distance and the secret key rate, are preventing the deployment of this technology on a large scale. More recent QKD protocols, which use multiple degrees of freedom for encoding of the quantum states, allow enhancement of the system performances. Here, we present the experimental demonstration of the differential phase-time shifting protocol up to 170 km of the fiber link. We compare its performance with the well-known coherent one-way and differential phase shifting protocols, demonstrating a higher secret key rate up to 100 km. Moreover, we propagate a classical signal in the same fiber, proving the compatibility of quantum and classical light.

arXiv:1901.01768•Applied Physics Letters•Jan 2, 2019•20 citations
Quantum key distribution (QKD) is a promising technology that aims to solve the security problem arising from the advent of quantum computers. While the main theoretical aspects are well developed today, limited performances, in terms of the achievable link distance and the secret key rate, are preventing the deployment of this technology on a large scale. More recent QKD protocols, which use multiple degrees of freedom for encoding of the quantum states, allow enhancement of the system performances. Here, we present the experimental demonstration of the differential phase-time shifting protocol up to 170 km of the fiber link. We compare its performance with the well-known coherent one-way and differential phase shifting protocols, demonstrating a higher secret key rate up to 100 km. Moreover, we propagate a classical signal in the same fiber, proving the compatibility of quantum and classical light.