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

IEEE International Conference on Advanced Networks and Telecommunications Systems

Implementation and Experimental Analysis of QKD link over Indian Southern Army Network

S. Kirubakaran, R Priyadharshini, Aswani Ashok, Deepika Rajan, A. Paventhan, Vivek Vaidyanathan

Published Dec 15, 2025• 0 citations
Publisher
DOI
10.1109/ants66931.2025.11429722

Related papers

Analysis, Design and Implementation of an End-to-End QKD Link

M. Mondin, F. Daneshgaran, Francesco Di Stasio +11 more

NATO science for peace and security series. B, Physics and biophysics•Jan 1, 2020•2 citations

Realizing long-term quantum cryptography

Abdul Mirza, Francesco Petruccione

We present a set of long-term quantum key distribution (QKD) results from the QuantumCity initiative in Durban, South Africa. Many QKD experimental setups have failed to provide a long-term analysis of QKD systems in commercial environments. Long-term analysis of the stability and performance of these systems is an imperative step towards the market acceptance of QKD technology. The Durban–QuantumCity project intends to develop a multi-user quantum communication network that is currently overlaid on the fiber infrastructure of the eThekwini Municipality. The first phase of this project includes the deployment of a four-node star network. To date, two links have been deployed and one link has run continuously for a number of months. We provide a brief overview of practical implementations of quantum networks and the first set of results from the live data encryption of the QuantumCity project.

Journal of the Optical Society of America B•May 21, 2010•52 citations

A Quantum Network with Atoms and Photons

Ronald E. Meyers, Keith S. Deacon, Arnold D. Tunick +2 more

Abstract : The objective of our Director's Strategic Initiative (DSI) research is to help pioneer a quantum repeater network beyond the US Army Research Laboratory (ARL) environment. The long-term goal is to achieve a quantum repeater network capability for the US Army. Initially, a quantum channel between ARL and the Joint Quantum Institute (JQI) at the University of Maryland - College Park was investigated. Quantum repeaters will allow secure quantum communications to extend to distances where photon attenuation normally becomes a limiting factor, and also allow quantum information to be transmitted and stored. The incipient quantum repeater network development is based on an architecture where nodes are entangled with their nearest neighbors through photon interference, and entanglement chains are established and purified through entanglement swapping. We established a dark optical fiber link between our quantum network laboratory and a quantum laboratory at JQI. We verified that the fiber link can carry entangled photons and quantum information. We constructed the rubidium (Rb) atomic memory magneto optical trap (MOT) cell and laser controls, and developed protocols, hardware, and software to control the secure teleportation of information between quantum memories at ARL and JQI. Notably, we performed successful in-laboratory proof-of-principle photonic teleportation experiments. In this report, we present initial progress in developing the scientific underpinnings towards implementing an expandable quantum network with atoms and photons (QNET-AP) to facilitate an intra-city quantum network connecting atomic memories.

•Sep 1, 2016•4 citations

Hybrid QKD/PQC in Real-World Optical Networks: Laboratory Characterization, Field Trials, and Network Simulation

Ondřej Klíčník, Tomáš Horváth, Petr Munster +10 more

•Jan 1, 2026•0 citations

QKD in Standard Optical Telecommunications Networks

Daniel Lancho Lancho, José-Fernán Martí­nez-Ortega, David Elkouss +2 more

arXiv:1006.1858•Lecture notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering•Jan 1, 2010•52 citations

Towards Deployable Single-Click Quantum Key Distribution: A System-Level Analysis for Practical Quantum Networks (Short Paper)

Valeria Saggio, Maria Luísa Mendes, Costin Luchian +3 more

The deployment of quantum-secure communication networks is facing rapid progress, however their practical implementation still presents significant challenges due to limited achievable distances, channel losses, resource constraints, and network imperfections. Focusing on single-click quantum key distribution (QKD) protocols, which are advantageous for their long-distance capabilities, we investigate their experimental requirements and system characteristics in the context of realistic network deployment. We provide a comprehensive assessment based on our current experimental status, anticipated improvements, different detection technologies, and channel asymmetries. We further discuss our experimental results obtained with a preliminary single-click QKD hardware implementation, showing an achievable communication distance of ~ 250 km, with the potential to extend this reach to ~ 500 km. We show that viable setup improvements enable even longer distances > 1000 km. Our analysis serves as a foundation for further evaluating the applicability of single-click QKD within an existing national quantum communication infrastructure, addressing key practical considerations such as link asymmetries and channel losses. Our study and results provide a solid foundation for the practical deployment of large-scale quantum communication networks, and highlight the potential of single-click QKD as a promising candidate in this direction.

ACM Conference on Post-Quantum and Quantum-based Security•Oct 26, 2026•0 citations
We present a set of long-term quantum key distribution (QKD) results from the QuantumCity initiative in Durban, South Africa. Many QKD experimental setups have failed to provide a long-term analysis of QKD systems in commercial environments. Long-term analysis of the stability and performance of these systems is an imperative step towards the market acceptance of QKD technology. The Durban–QuantumCity project intends to develop a multi-user quantum communication network that is currently overlaid on the fiber infrastructure of the eThekwini Municipality. The first phase of this project includes the deployment of a four-node star network. To date, two links have been deployed and one link has run continuously for a number of months. We provide a brief overview of practical implementations of quantum networks and the first set of results from the live data encryption of the QuantumCity project.
Abstract : The objective of our Director's Strategic Initiative (DSI) research is to help pioneer a quantum repeater network beyond the US Army Research Laboratory (ARL) environment. The long-term goal is to achieve a quantum repeater network capability for the US Army. Initially, a quantum channel between ARL and the Joint Quantum Institute (JQI) at the University of Maryland - College Park was investigated. Quantum repeaters will allow secure quantum communications to extend to distances where photon attenuation normally becomes a limiting factor, and also allow quantum information to be transmitted and stored. The incipient quantum repeater network development is based on an architecture where nodes are entangled with their nearest neighbors through photon interference, and entanglement chains are established and purified through entanglement swapping. We established a dark optical fiber link between our quantum network laboratory and a quantum laboratory at JQI. We verified that the fiber link can carry entangled photons and quantum information. We constructed the rubidium (Rb) atomic memory magneto optical trap (MOT) cell and laser controls, and developed protocols, hardware, and software to control the secure teleportation of information between quantum memories at ARL and JQI. Notably, we performed successful in-laboratory proof-of-principle photonic teleportation experiments. In this report, we present initial progress in developing the scientific underpinnings towards implementing an expandable quantum network with atoms and photons (QNET-AP) to facilitate an intra-city quantum network connecting atomic memories.
The deployment of quantum-secure communication networks is facing rapid progress, however their practical implementation still presents significant challenges due to limited achievable distances, channel losses, resource constraints, and network imperfections. Focusing on single-click quantum key distribution (QKD) protocols, which are advantageous for their long-distance capabilities, we investigate their experimental requirements and system characteristics in the context of realistic network deployment. We provide a comprehensive assessment based on our current experimental status, anticipated improvements, different detection technologies, and channel asymmetries. We further discuss our experimental results obtained with a preliminary single-click QKD hardware implementation, showing an achievable communication distance of ~ 250 km, with the potential to extend this reach to ~ 500 km. We show that viable setup improvements enable even longer distances > 1000 km. Our analysis serves as a foundation for further evaluating the applicability of single-click QKD within an existing national quantum communication infrastructure, addressing key practical considerations such as link asymmetries and channel losses. Our study and results provide a solid foundation for the practical deployment of large-scale quantum communication networks, and highlight the potential of single-click QKD as a promising candidate in this direction.