Geneva launches first citywide quantum network for research & industry
IonQ has joined several Swiss partners to deploy Geneva's first citywide quantum network, connecting research, government, and industry through existing fibre infrastructure.
The consortium, comprising the University of Geneva, CERN, Rolex SA, Haute École du Paysage, d'Ingénierie et d'Architecture de Genève (HEPIA), and the Cantonal Office for Information Systems and Digital Technology (OCSIN), has established the Geneva Quantum Network (GQN) to advance quantum cybersecurity, secure communications, and applied research in Switzerland.
System architecture
At the heart of the GQN are precision time signals distributed via White Rabbit synchronisation technology developed at CERN. Rolex SA's contribution includes its latest-generation optical rubidium atomic clock, providing ultra-precise timekeeping to the network. HEPIA will install distributed temperature sensors powered by single photon detectors, enabling high-resolution readings along the network fibres.
The quantum network is implemented over OCSIN's fibre backbone infrastructure, utilising IDQ's quantum key distribution and quantum detection systems for security and data integrity. In addition, early experiments on the network are focusing on the transfer of entangled photons between the University of Geneva, CERN, and HEPIA to explore quantum information transfer across substantial distances within the city.
Industry and academia
The collaboration integrates the expertise of leading academic, government, and industrial stakeholders in Geneva, providing a platform for the deployment of citywide quantum communication and synchronisation protocols. The network is seen by the partners as a model for how quantum infrastructure can be deployed in a metropolitan environment, serving as a testbed for further advances in quantum internet technologies.
Niccolo de Masi, Chairman and CEO of IonQ, detailed the company's perspective on Geneva's new infrastructure:
"Our involvement in the GQN alongside globally-renowned companies such as Rolex and research leaders like CERN, underscores our IP and pioneering leadership in quantum cybersecurity and communication. IonQ is leveraging existing fiber optic infrastructure to link partners across the Geneva region. Our partnership with leading universities, government, and industry players in Geneva is enabling real-world quantum communications, accelerating research, and building IonQ's ecosystem across broad sectors of the economy."
The network builds on IonQ's recent moves to expand its quantum infrastructure presence internationally, following initiatives in Italy, the United Kingdom, and South Korea. The GQN represents the first of its kind in Switzerland, directly connecting various sectors to foster experimentation and advance the understanding of practical quantum technologies.
Technical features
The GQN's distribution of precise time signals is a critical feature, with White Rabbit synchronisation ensuring accuracy for both communications and time measurement. Rolex SA's atomic clock provides the reference for these signals, while HEPIA's single photon detectors contribute fine-grained environmental monitoring along the fibre routes.
Quantum key distribution systems from IDQ underpin the secure transfer of data throughout the network, providing practical testing grounds for future applications in quantum-secured communication and data synchronisation. The early experiments with entangled photons between research institutions are intended to shed light on the challenges and opportunities present in city-scale quantum networks.
Research and ecosystem impact
By fostering direct collaboration between universities, government, and private enterprises, IonQ aims to expedite advancements in quantum computing, networking, and sensing technologies. The network will function as a research infrastructure, as well as support broader quantum technology awareness and education throughout the region.
The Geneva Quantum Network exemplifies the approach of deploying quantum infrastructure at city scale, providing a working example for similar initiatives elsewhere. The goal is to lay foundational elements for a practical quantum internet, while supporting research across disciplines including cybersecurity, communications, and precise time measurement.
