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

High-dimensional quantum key distribution secured by dual-basis interferometry

Yujie Chen, Xiang Cheng, Murat Can Sarihan, Kai-Chi Chang, Chee Wei Wong

Published Jan 1, 2025• 0 citations
Publisher

Abstract

We propose using dual-basis interferometry to probe frequency and arrival-time correlations of entangled photons, enhancing the unconditional security of high-dimensional quantum key distribution.
DOI
10.1364/cleo_fs.2025.ff102_5

Related papers

High Dimensional Quantum Key Distribution with Biphoton Frequency Combs through Energy-Time Entanglement

Murat Can Sarihan, Kai-Chi Chang, Xiang Cheng +7 more

Biphoton frequency combs offer a photon-efficient way to achieve a very high-rate quantum key distribution by utilizing both time and frequency-bin encoding, while offering theoretically proven unconditional security.

Conference on Lasers and Electro-Optics•Jan 1, 2019•5 citations

Quantum Communication Using Time-energy Entangled Photons

Zheshen Zhang, Jacob Mower, Catherine Lee +4 more

Single-photon high-dimensional quantum communication boosts photon efficiency and throughput. We report two time-energy-entanglement based quantum key distribution experiments — one using dispersive optics, the other Franson interferometry — with proven security against collective attacks.

Research in Optical Sciences•Jan 1, 2014•0 citations

Fast and Simple One-Way High-Dimensional Quantum Key Distribution

Kfir Sulimany, Rom Dudkiewicz, S. É. Korenblit +3 more

We propose and analyze a novel high-dimensional quantum key distribution protocol. We implement the protocol using a software update in a standard two-dimensional system and observe a twofold enhancement in the secure key rate.

Frontiers in Optics•Jan 1, 2021•3 citations

High-Dimensional Quantum Key Distribution with Scrambled Time-Bin Encoding

Kfir Sulimany, Rom Dudkiewicz, S. É. Korenblit +3 more

We propose and analyze a high-dimensional cryptographic protocol relying on a coherent-one-way quantum key distribution system. We demonstrate it over a 40km fiber link and observe a twofold enhancement in the secure key rate.

Quantum 2.0 Conference and Exhibition•Jan 1, 2022•1 citation

Four-photon interferometry for secure quantum key distribution

P. Hariharan, Barry C. Sanders

We introduce a quantum key distribution scheme based on four–photon coincidence measurements. This scheme overcomes security compromises due to photon losses and dark counts in contrast to current quantum key distribution methods.

Optical Fiber Communication Conference•Jan 1, 2001•0 citations

Unconditional Security of Time-Energy Entanglement Quantum Key Distribution Using Dual-Basis Interferometry

Zheshen Zhang, Jacob Mower, Dirk Englund +2 more

High-dimensional quantum key distribution (HDQKD) offers the possibility of high secure-key rate with high photon-information efficiency. We consider HDQKD based on the time-energy entanglement produced by spontaneous parametric down-conversion and show that it is secure against collective attacks. Its security rests upon visibility data-obtained from Franson and conjugate-Franson interferometers-that probe photon-pair frequency correlations and arrival-time correlations. From these measurements, an upper bound can be established on the eavesdropper's Holevo information by translating the Gaussian-state security analysis for continuous-variable quantum key distribution so that it applies to our protocol. We show that visibility data from just the Franson interferometer provides a weaker, but nonetheless useful, secure-key rate lower bound. To handle multiple-pair emissions, we incorporate the decoy-state approach into our protocol. Our results show that over a 200-km transmission distance in optical fiber, time-energy entanglement HDQKD could permit a 700-bit/sec secure-key rate and a photon information efficiency of 2 secure-key bits per photon coincidence in the key-generation phase using receivers with a 15% system efficiency.

arXiv:1311.0825•Physical Review Letters•Mar 26, 2014•106 citations
High-dimensional quantum key distribution (HDQKD) offers the possibility of high secure-key rate with high photon-information efficiency. We consider HDQKD based on the time-energy entanglement produced by spontaneous parametric down-conversion and show that it is secure against collective attacks. Its security rests upon visibility data-obtained from Franson and conjugate-Franson interferometers-that probe photon-pair frequency correlations and arrival-time correlations. From these measurements, an upper bound can be established on the eavesdropper's Holevo information by translating the Gaussian-state security analysis for continuous-variable quantum key distribution so that it applies to our protocol. We show that visibility data from just the Franson interferometer provides a weaker, but nonetheless useful, secure-key rate lower bound. To handle multiple-pair emissions, we incorporate the decoy-state approach into our protocol. Our results show that over a 200-km transmission distance in optical fiber, time-energy entanglement HDQKD could permit a 700-bit/sec secure-key rate and a photon information efficiency of 2 secure-key bits per photon coincidence in the key-generation phase using receivers with a 15% system efficiency.