Tootfinder

Multi-dimensional frequency-bin entanglement-based quantum key distribution network
George Claudiu Crisan, Antoine Henry, Dario Alessandro Fioretto, Juan Rafael Alvarez, St\'ephan Monfray, Fr\'ed\'eric Boeuf, Laurent Vivien, Eric Cassan, Carlos Alonso-Ramos, Nadia Belabas
https://arxiv.org/abs/2507.00972

Multi-dimensional frequency-bin entanglement-based quantum key distribution network
Quantum networks enhance quantum communication schemes and link multiple users over large areas. Harnessing high dimensional quantum states - i.e. qu-d-its - allows for a denser transfer of information with increased robustness to noise compared to qubits. Frequency encoding enables access to such qu-d-its at telecom wavelengths, while manipulating quantum information with off-the-shelf fibered devices. We use a low free spectral range silicon microresonator to generate Bell states of dimensi…