Quantinuum Finalizes a $100 Million CHIPS Research Award
The federal agreement targets ion-trap manufacturing and optical components, not a finished fault-tolerant computer.
Photonic quantum computing
Light, fabrication and the engineering of scalable quantum systems.
A clear starting point
Photonic quantum computing uses light to encode and process quantum information. Its engineering depends on sources, detectors, optical components and ways to connect them with sufficiently low loss.
A manufacturing milestone, a sampling experiment and a fault-tolerant computer demonstrate different things. Assess the complete optical system and its error assumptions, including the resources needed to turn physical components into useful logical operations.
Nature: a modular photonic quantum computer ↗Latest coverage
SkyWater and Qolab Put a Foundry Model Behind Superconducting Hardware
Qolab will be a lead customer for SkyWater's SC250 wafer platform, but the partners disclosed no new quantum-processor benchmark or shipment.
Quantum chips need a factory, too. Copenhagen has a plan
A planned Danish foundry would give quantum-hardware teams another place to manufacture their chips.
AIST Maps the Parts Photonic Quantum Computers Still Need
A new Japanese roadmap spells out the light sources, detectors and control hardware that must improve before photonic systems can scale.
Canada Commits C$195 Million to Xanadu Manufacturing Project
Federal funding supports a C$893 million project to expand research and establish advanced quantum manufacturing in Canada.
NIST’s bigger photon detectors have a quieter way to see
Superconducting rails help detectors reach 0.1 millimetres in width while reducing false signals—a useful step toward larger optical sensors.
Pasqal Reports Trapping Four Atoms With Chip-Delivered Light
A photonic integrated circuit produced four rubidium-atom traps, with an approximately 27.5-second lifetime reported by the company.
D-Wave Demonstrates a Fast Gate for Dual-Rail Erasure Qubits
A Nature experiment reports an approximately 500-nanosecond entangling gate that largely preserves detectable photon-loss errors.
Who is working on it
ORCA Computing
photonic quantum computing; quantum memory; hybrid systems
Research & evidence →PsiQuantum
Encodes quantum information in photons and aims to connect manufactured photonic components into an error-corrected system. Construct helps developers design algorithms and estimate the resources future machines would require.
Research & evidence →Quandela
single-photon sources; photonic processors; cloud access
Research & evidence →Quantum Computing Inc.
integrated photonics; quantum optics; entropy and security products
Research & evidence →QuiX Quantum
photonic processors; foundry-compatible integrated photonics
Research & evidence →Xanadu
Processes optical states using photonic chips, detectors and fiber links; Aurora tests how these components work together.
Research & evidence →Selected organizations relevant to this topic. Inclusion is not a ranking.