ORCA Launches PT-3 Photonic Quantum Computer for AI and Optimization

LONDON, Oct. 15, 2026 — ORCA Computing today launched the PT-3, the newest generation of its photonic quantum computers, and the first built to deliver commercial quantum advantage. The first system is live in the Digital Realty Innovation Lab (DRIL) in London, where it runs alongside NVIDIA accelerated computing.

AI for science, harnessing AI to transform scientific discovery, is rapidly emerging as one of the most important new categories in computing and a major industry-wide focus, yet it is held back by limited training data. According to ORCA, PT-3 works alongside GPUs to increase the expressivity of AI models (their ability to represent complex patterns and data distributions), helping them learn more from limited data and identify better, more novel candidates for new drugs and materials.

The PT-3 has allowed ORCA to generate results from a hybrid quantum-classical extension of NVIDIA Proteína, the generative model for protein design. Trained on 32 NVIDIA Hopper GPUs working with a PT-3 using 64 photons in 128 qumodes, the hybrid model showed enhanced designability over the classical baseline, improving the ratio of useful proteins by 20%, and generated novel proteins with a different mix of secondary structures.

This builds on earlier life sciences results from ORCA’s PT-2 system. Working with the Technical University of Denmark, the PT-2 produced around twice as many strong peptide binders as classical AI, validated in the wet lab. It also generated 49% more valid, unique molecules on the QM9 benchmark.

The PT-3 is also being applied to optimization problems such as smarter energy scheduling. Earlier this year, JIJ Inc. and ORCA, in collaboration with bp and the UK’s National Quantum Computing Centre (NQCC), published a white paper that benchmarked hybrid approaches to the unit commitment problem. On that 25,755-variable benchmark, ORCA’s PT-3 now runs the hybrid quantum-classical workflow in about an hour, more than 12× faster than its predecessor at the same solution quality. In the white paper’s testing, the hybrid solver’s results were competitive with the industry-standard commercial optimization solver on solution quality and, with more runtime, found the best solutions of any method tested.

Richard Murray, Co-founder and CEO of ORCA Computing, said: “By integrating our photonic quantum computer with NVIDIA accelerated computing, we have taken a critical first step in the future of hybrid quantum supercomputing. The PT-3 is already delivering results in AI for science and industrial optimization, from protein design to energy scheduling. Through Digital Realty, enterprise users can now put it to work on their most challenging workloads, and customers are trialling use cases in life sciences, defense, energy and logistics. The PT-3 is built to scale: it upgrades in the field, so customers who start today keep building on the same system.”

“With the PT-3, ORCA is bringing photonic quantum computing and NVIDIA accelerated computing together in a system researchers can use to develop and test new applications,” said Sam Stanwyck, Director of Quantum Product at NVIDIA. “The value of a computing platform is in what researchers build on it. ORCA’s extension of NVIDIA’s Proteína model to generate a different range of protein structures with improved designability is a great example of what can be accomplished when these tools come together.”

“Our partnership with ORCA reflects a shared ambition to make quantum computing practical for business. Hosting the PT-3 in the DRIL gives us a real-world environment to explore how quantum can deliver value today, and it’s a significant step towards commercial quantum advantage at scale,” said Séamus Dunne, Managing Director, UK & Ireland, Digital Realty.

ORCA Computing, headquartered in London, UK, with offices in the United States, is a leading developer and provider of full-stack photonic quantum computing systems. The company delivers an innovative approach to quantum computing, providing robust, high-performance, and data center-standard systems for machine learning, generative AI and optimization workloads. ORCA Computing has successfully delivered eleven on-premises quantum computers to leading global customers, including the UK National Quantum Computing Centre, Montana State University, and the Poznan Supercomputing and Networking Center.