Whitepaper: CARINA – Universal Photonic Quantum Computing
Quix Quantum
Quix Quantum · 2026
Quantum computing is moving from scientific promise toward engineered systems that can be deployed, integrated, and used in real-world computing environments. Within this transition, QuiX Quantum photonic quantum computing offers a compelling path: it operates naturally with telecom-compatible technologies, supports modular architectures, and has the potential to scale efficiently while aligning with the energy and infrastructure requirements of modern data centres. Carina marks a major milestone in this evolution. Developed by QuiX Quantum, Carina is positioned as the world’s first universal photonic quantum computer designed for customer deployment. It brings together the critical building blocks required for universal, measurement-based photonic quantum computing in a system architecture intended to move beyond laboratory demonstration and into an operational customer environment. The significance of Carina lies in the combination of two capabilities that have historically been pursued separately. Some quantum computing approaches have focused on near-term commercial deployment but rely on architectures that are not designed to scale toward universal, fault-tolerant computation. Others pursue universality and long-term scalability but remain dependent on specialized laboratory conditions that limit practical deployment. QuiX has chosen the more demanding path: building room-temperature, customer- installable photonic quantum systems while solving the engineering challenges required for universality. This white paper describes how Carina advances that path. The system integrates a set of core technologies developed by QuiX, including on-chip photon generation, high-speed switching and multiplexing, cluster- state generation, real-time feed-forward control, and scalable photonic integrated circuit control through the Photonic Assembly Control Unit. Together, these technologies enable the execution of a universal gate set and establish the foundations for measurement-based quantum computing using photonic qubits. Carina also represents an important step toward fault-tolerant quantum computing. Universality is a prerequisite for generating the resource states, logical operations, and adaptive measurement patterns required by fault-tolerant measurement-based architectures. QuiX’s progress in photon indistinguishability with photon distillation, feed-forward control, and data-centre-compatible photonic control directly addresses several of the key bottlenecks on the route to scalable quantum systems. Equally important, Carina reflects QuiX Quantum’s long-standing focus on delivering real photonic hardware to customers. Building on its track record in quantum photonic processors, QuiX is extending its leadership from special-purpose photonic systems to a universal architecture designed for deployment. This milestone does not change QuiX’s identity as a hardware company; it raises the bar for what deployable quantum hardware can be. By bringing universality, photonics, and customer deployment together in one system, Carina establishes a new benchmark for the quantum computing industry. It demonstrates that the path toward useful, fault- tolerant quantum computing is not only a scientific challenge, but an engineering challenge: one that requires scalable components, robust system integration, and architectures that can leave the lab. Carina is QuiX Quantum’s decisive step toward that future.
Quix Quantum (2026)
https://www.quixquantum.com/documents/carina-whitepaper



