German quantum technology company NVision has unveiled a molecular qubit architecture designed for semiconductor manufacturing, potentially removing a major obstacle to building quantum computers containing millions of interconnected qubits.
The breakthrough, detailed in a peer-reviewed Nature paper, demonstrates an individually addressable organic molecular spin-photon interface, enabling quantum information to be controlled at the molecular level and connected through light.
NVision has also partnered with US photonics specialist HyperLight to integrate molecular qubits directly onto photonic integrated circuits using thin-film deposition techniques compatible with established semiconductor manufacturing.
The approach could reduce dependence on expensive, specialised fabrication facilities while enabling quantum processors to communicate through optical connections.
Unlike conventional architectures requiring closely positioned qubits, NVision’s Photonic Integrated Quantum Circuit platform uses photons to connect quantum resources across individual chips and processors.
Its engineered carbene molecules operate at cryogenic temperatures between 2K and 4K. The company claims its architecture can tolerate photon losses reaching 70%, potentially simplifying optical infrastructure requirements.
Researchers screened more than 150 molecular candidates and synthesised 40 before identifying the system underpinning the breakthrough.
NVision expects prototype integrated chips during the fourth quarter of 2026, with an initial demonstration of on-chip performance targeted before year-end.
Its commercial roadmap envisages progressing from 1,000 physical qubits towards 1,000 logical, fault-tolerant qubits by 2030.
However, the published research validates a foundational quantum interface rather than a commercially operational processor.
The critical challenge now is translating laboratory-level molecular control into reliable, manufacturable quantum hardware capable of delivering fault-tolerant computation at industrial scale.
