QuiX Quantum Delivers Carina Core Hardware Platform for 8-Qubit Photonic Quantum Computing

Platform Delivery: QuiX Quantum delivers the Carina core hardware platform as an 8-qubit universal photonic quantum computing demonstrator.Graph-State Innovation: Carina employs 4-qubit graph states generated from multiplexed 8-photon inputs with a 10 MHz operational clock cycle.Strategic Collaboration: The platform advances the UPQC project, supporting delivery of photonic prototypes to the German Aerospace Center (DLR) by 2026.QuiX Quantum has delivered its Carina core hardware platform, an 8-qubit universal photonic quantum computing demonstrator built on 4-qubit graph states. Developed as part of the Universal Photonic Quantum Computer (UPQC) project in partnership with the German Aerospace Center (DLR), the system incorporates chip-integrated photon sources, a multiplexer, and state generator to produce resource states from eight simultaneous input photons. Operating at under 3,500 watts with a 10 MHz clock cycle, Carina includes an optimized compiler converting gate-based circuits to measurement-based quantum computing (MBQC) operations, supporting more than 10 gate operations per cycle and example algorithms including Shor’s algorithm, Deutsch’s algorithm, Grover’s algorithm, and quantum teleportation. A dedicated Carina Emulator provides a digital twin for simulation and circuit optimization.The Carina platform advances photonic quantum hardware by leveraging graph states for efficient computation. QuiX Quantum utilizes multiplexed photon generation to create entangled 4-qubit resource states from eight input photons produced via chip-integrated sources based on spontaneous four-wave mixing in silicon nitride structures. These graph states support measurement-based quantum computing, where adaptive single-qubit measurements on the pre-entangled resource perform the algorithm without requiring a full universal gate set at every step.Key parameters include a 10 MHz clock cycle enabling synchronized photon operations and an optimized gate-based to MBQC compiler that executes more than 10 gate operations per cycle. The platform also integrates a Carina Emulator serving as a digital twin to simulate all supported qubit and photonic operations while compiling and optimizing gate-based circuits for MBQC execution. This design aligns with QuiX Quantum’s broader use of CMOS-compatible silicon nitride photonic integrated circuits to achieve low-loss photon manipulation and scalable architectures suitable for hybrid environments. The architecture further draws on established photonic techniques demonstrated in the UPQC project documentation.Under the UPQC initiative, the Carina platform equips the German Aerospace Center (DLR) with a functional testbed for quantum algorithm development, physical error mitigation, and algorithmic error correction research. The sub-3,500-watt power envelope and modular photonic design support integration into existing high-performance computing infrastructure without cryogenic requirements, facilitating hybrid quantum-classical workflows.As one element of a larger program targeting delivery of up to four hardware prototypes reaching 64 physical qubits by 2026, Carina establishes foundational capabilities for error-correctable universal photonic quantum computing. The effort reinforces European photonic quantum technology development, enabling practical experimentation with resource-state generation, feed-forward control, and measurement-based protocols while laying groundwork for future fault-tolerant systems compatible with data-center deployment. Related control infrastructure advances from QuiX Quantum, including real-time feed-forward components, further enhance the platform’s readiness for industrial-scale applications within the broader DLR Quantum Computing Initiative.QuiX Quantum’s Carina platform delivers an 8-qubit graph-state photonic demonstrator to accelerate universal quantum computing research with DLR.Find out more here.—Further articles, reports, and the latest quantum computing news may be found at The Qubit Report.Aliro Technologies and zerothird demonstrated a live entanglement-based quantum key distribution network at Cisco’s Photonics Center in Vimercate, Italy. 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