Technology - Photonic

Quantum computing that puts Entanglement First^TM

Photonic’s Entanglement First™ architecture uniquely networks silicon spin qubits together with photons to overcome the challenges that limit other platforms. This integration is what makes true scalability possible. Unlike architectures that bolt on networking as an afterthought, Photonic’s qubits are extensively linked. Each qubit can be entangled efficiently with any other via photons over existing telecom fibre — allowing quantum operations to span neighboring qubits, chips, racks, and even data centers.

Full-stack quantum computing

An architecture designed to deliver at scale

Photonic’s Entanglement First™ architecture is purpose-built to enable modular, scalable commercial quantum networks. By prioritizing entanglement – the mechanism that enables parallel processing and exponential computational advantage in quantum algorithms – this architecture solves one of the hardest scaling challenges: moving beyond single-node systems to truly distributed quantum computing. Photonic’s architecture is unique in enabling both quantum computation and efficient quantum networking on the same platform using T centres, which are uniquely tailored to the needs of distributed quantum computing. T centres contain three nuclear spin qubits for memory and computation (two carbon and a hydrogen), and one electron spin qubit for computation and/or readout, simplifying entanglement operations between T centres.

T centre qubits in silicon leverage the best of new and existing technology.

Silicon spins: Spin qubits within silicon have exceptional quantum memories, setting performance records for fidelity and lifetimes. They also interface seamlessly with standard photonic integrated circuit technology that is highly manufacturable and scalable.

Telecom photons: T centres emit in the telecom band, allowing flexible 'any to any' connectivity between qubits both locally and remotely, using existing fibre and network infrastructure. This facilitates efficient entanglement, the most crucial resource in modular quantum computers and networks.

High connectivity

Photonic’s Entanglement First™ architecture removes a critical barrier in scaling to millions of qubits with integrated, on-chip optical interconnects and any-to-any connectivity. This architecture makes it possible to scale up rapidly within modules and to scale out cost-effectively to parallel modules for increased computing power and the creation of distributed quantum networks.

Efficient error correction

Photonic's unique implementation of QLDPC codes is the first to execute both quantum logic and error correction efficiently. It uses non-local connectivity to encode multiple logical qubits in a single code block – for up to 20x fewer physical qubits per logical qubit. QLDPC also enables faster error correction – delivering up to 30x speedup using vastly fewer physical resources.

Designed and built to scale

Achieving scale requires systems that are networkable, fault-tolerant, and stable — capabilities engineered into Photonic’s architecture from the outset. Photonic's architecture scales up via dense qubit integration in a single integrated-silicon module, scales out through distributed computing across telecom-networked modules, and scales performance with fast quantum operations and efficient error correction across thousands of stable qubits.

Full stack quantum computing and networking

At Photonic, we believe that the most performant system will be one designed from the ground up with the needs of both computing and networking in mind. We have recruited experts from a wide range of backgrounds and expertise to build a full-stack fully integrated system. See our paper, Scalable Fault-Tolerant Quantum Technologies with Silicon Colour Centres, for more details about our architecture.

Quantum computing that puts Entanglement FirstTM