1st SIG-Quantum meeting - Geneva, Switzerland

Arrival & badge pick-up

Lunch

Welcome - Dom Vicinanza (GÉANT and Anglia Ruskin University), SIG-Quantum Coordinator

Slides

Welcome and introduction - Sofia Vallecorsa, Amanda Díez Fernández (CERN)

Slides

QUANT-NET: A Distributed Quantum Computing Testbed using photon-matter entanglement distribution over fiber-link, Inder Monga (ESNet)

Slides

Entanglement Networks for Datacentre-Scale Quantum Computing, Dr Mario de Miguel Ramos (Nu Quantum)

Abstract: The quantum computing industry has been sustaining fast progress in scale-up, with quantum processors now demonstrating error-corrected logical qubits and first indications of computational advantage for narrow scientific problems. This talk will look ahead to what we require to reach full commercial advantage, and show that there is a key piece missing: modularity. The scaling path we envisage will entail building multi-core quantum computing clusters at the datacenter scale, and eventually connecting tens or hundreds of modules together to enable multi-million-qubit machines.

This talk will describe our distributed quantum computing architecture underpinned by photonic interconnects. It will outline the technical challenges that need to be overcome to progress the technology, and how Nu Quantum is working to build the pieces needed to scale out towards useful quantum computation.

Slides

QKD and beyond QKD, Wojciech Kozlowski and Garazi Muguruza Lasa (SURF)

Abstract: In this talk we will give a brief overview and demo of the open source eduKMS followed by a call to action for co-development for NREN QKD networks. Afterwards, we will present the results of our investigation into applications beyond QKD that are feasible with existing hardware to open a discussion on future directions towards a quantum internet.

Slides

Hybrid Quantum-Classical computing infrastructure - algorithms and use cases, Piotr Rydlichowski (PCSS)

Abstract: In this talk we will present current state of PCSS quantum computing infrastructure, systems, architecture, use cases and how it alligns with EuroHPC JU activities. Hybrid quantum-classical computing infrastructure, algorithms and use cases and critical step to advance quantum computing in utility scale era and move toward error-corrected systems.

Slides

Group dinner at Pizzeria Restaurant de la Place/Cafe de la Place (self-paid)

Address: Rte de Meyrin 286, 1217 Meyrin, Switzerland

Google maps link

Distribution of polarization-entangled photon pairs co-existing with White Rabbit signals over shared optical fiber, Annick Teepe (CERN)

Abstract: We demonstrate the co-propagation of O-band polarization-entangled photon pairs with C-band White Rabbit (WR) synchronization signals over looped-back fiber links. Beyond sub-nanosecond timing, the classical WR signal serves as a real-time probe: by tapping some of its light post-demultiplexing, and routing it to a polarimeter, we continuously monitor polarization drifts and timing fluctuations without interrupting the quantum link. Part of the Geneva Quantum Network, this work will evolve toward metropolitan scale entanglement distribution by relocating one network node to the University of Geneva. These results prove that high-precision synchronization and entanglement can coexist, facilitating the integration of quantum communication into existing telecommunications infrastructure.

Slides

Quantum sensors: Technologies, Networks and Interfaces, Ksawery Mielczarek (PCSS)

Abstract: In this talk, I will provide an overview of quantum sensing technologies, including atomic clocks, magnetometers, gravimeters and gyroscopes. I will introduce their operating principles, review the current state of the art, and discuss representative real-world applications. I will also examine whether these devices really offer a quantum advantage over their classical counterparts.
The talk will then explore the role of optical-fiber networks in quantum sensing, discussing whether quantum sensors could and should be used in distributed configurations. Finally, I will present time-lens techniques and show how they can be used to interface different quantum devices, including single-photon sources and detectors. 

Slides