A single trapped ion inside a cavity will fire photons at a rate high enough to link quantum processors across a network, and a UK consortium is building the first prototype of the interface that makes this possible. Today’s quantum computers are too small to solve genuinely useful problems. The standard approach—packing more qubits into a single chip—hits physical limits. This project tackles the bottleneck that prevents quantum computers from being split into smaller, connected modules: the interface between a qubit inside a computing core and the light-based network that would link multiple cores together. Without a high-efficiency qubit-photon interface, distributed quantum computing remains theoretical. If HyperIon succeeds, it will demonstrate a prototype that can be integrated with commercial quantum processing units and manufactured at scale. That would unlock a modular, networked architecture for quantum computers—one that can grow to the size needed for real-world applications in drug discovery, materials design, and logistics optimisation. The work also strengthens the UK’s position in the emerging quantum networking market, which underpins the infrastructure for future distributed computing systems.
View original technical description
To address really valuable problems, Quantum Computing machines must scale to 100k to millions of physical qubits. Machines of this size cannot be constructed monolithically - the roadmap to utility inevitably mandates a modular and networked architecture of processors that are woven together to form a larger, more powerful machine. This project directly tackles one of the most critical components of such a distributed quantum computer: the need for a highly efficient interface between qubits inside computing cores and the wider light-based quantum networking infrastructure. HyperIon will prove the significant aspects of a first-of-its-kind Qubit-Photon Interface (QPI) prototype, with a clear path towards a full system-level demonstrator and a clear path towards integration with commercial Quantum Processing Units (QPUs) and robust mass production. Led by Nu Quantum (NuQ), the project partners are the University of Sussex (UoS) Ion Trap research group, and Cisco providing independent end-user input and commercial exploitation support.A foundry subcontractor is assigned, bringing in specialist fabrication techniques suitable for mass-production. Project will demonstrate and deliver improvements over the current state-of-the-art in the domains of: **Performance (NuQ)**: single-ion QPI system capable of a 50x increase in entanglement rate together with state of art remote fidelity. **Path to QPI-QPU integration (UoS)**: innovative wafer-based trap for shuttling a qubit to a cavity-ion interaction zone, compatible with different vendors' subsystems. **Path to Manufacturability (NuQ-Subcontractor)**: foundry-compliant designs to allow large-scale manufacturing of ion-traps with integrated cavities The project directly supports the UK's leadership in this critical and emerging market of Quantum Networking to scale Quantum Computing by accelerating the progress of QPI development between Lead Nu Quantum and academic partner University of Sussex.
Plain English summaries and category classifications on this site are generated by AI and may not perfectly reflect the original research.
Is something wrong? Let us know