QuiX Quantum announced Carina on July 14, 2026, as “the world’s first universal photonic quantum computing architecture designed for deployment in customer data center environments,” according to its release.
The same day, QuiX said it had delivered Carina’s core hardware to the German Aerospace Center’s Quantum Computing Initiative (DLR QCI). QuiX developed the system in a DLR QCI project funded by Germany’s Federal Ministry of Research, Technology and Space.
Carina “is set to demonstrate universality,” QuiX wrote in its white paper, and the company has reported no computation on the delivered hardware. In its release, QuiX described that goal as a universal gate set able “to perform any gate-based quantum algorithm,” unlike earlier special-purpose photonic machines.
QuiX said the delivered subsystems will go through system integration, commissioning, calibration, measurement, and validation at DLR “over the coming months,” without giving a completion date.
Carina has “eight input photonic qubits and four computational photonic qubits,” Stefan Hengesbach, QuiX’s chief executive, told Forbes. QuiX uses single photons as physical qubits, the hardware units that store quantum information without error correction.
How Carina computes
Carina uses measurement-based quantum computing, in which the machine entangles photons into a resource state and then computes by measuring them. Fast electronics use each measurement result to set up the next measurement, a step known as feed-forward.
QuiX used two descriptions in its release, calling Carina a “compact, room-temperature system” in one sentence and citing “room-temperature operation across much of the system” in another.
In the white paper, QuiX wrote that Carina’s photon sources are “integrated photon generators that operate at room temperature.” It listed the single-photon detectors “with cryostats,” refrigerators that keep the detectors at cryogenic temperatures. “The size and complexity of the associated cryogenic systems significantly influence system scalability,” QuiX wrote in a footnote.
Carina works “in a loss-free scheme” by discarding each run in which “a photon has been truly lost or two photons ended up at the same detector,” QuiX wrote. Post-selection, as the method is known, means counting only the runs in which the detectors record no such failure.
Carina is designed “to initially operate with computation, i.e., measurements, at specific time steps that are not always sequential,” QuiX wrote in another footnote. In the same footnote, QuiX wrote that lowering the system’s overall losses raises the probability of generating k photons at the same time, by a factor that grows “exponentially with k.”
Measured and planned
QuiX listed “measured specs” for Carina’s feed-forward control unit, the electronics that convert detector signals into control actions on the photonic chips. They include a “150 ns response to detector signals” and trigger outputs from 1 to 100 megahertz.
QuiX wrote that the full system “consists of ~88U rack-mounted pieces of equipment with max power consumption ~9 kW,” or about two standard 42-unit server racks. DLR listed “Power usage < 3500 W” for Carina on its project page.
QuiX wrote that “Carina will provide the first demonstration ever of an on-chip cluster state generator,” a chip that entangles photons into the resource states the machine consumes. The company intends to run “established protocols and quantum algorithms” on Carina, including quantum teleportation and the Shor, Grover, and Deutsch-Jozsa algorithms.
Computations “will be executed on a Carina emulator” first, followed by “trials on the hardware demonstrator,” QuiX wrote. DLR lists the emulator on its QCI Connect platform with eight input and four calculation qubits, all of them photonic.
Shor’s algorithm is the factoring method that a large enough quantum computer could use to break RSA encryption. Hengesbach told Forbes that the planned demonstrations do not mean Carina can break encryption or solve commercially relevant versions of those algorithms today.
Contract and next system
DLR wrote on its project page that QuiX will deliver four hardware prototypes “with up to 64 physical qubits” to DLR by 2026. Carina is an eight-qubit universal photonic system “using 4 qubit graph states as its computational base,” DLR wrote on the same page. Systems of Carina’s class are “multi-million euro strategic infrastructure projects,” Hengesbach told Forbes.
On June 30, QuiX published a white paper on Dedalo, a next-generation architecture intended to demonstrate logical qubits protected against photon loss, without giving a date for building it. A logical qubit is one unit of quantum information spread across several physical qubits so that errors can be detected and corrected.
QuiX quoted two University of Queensland physicists, Gerard Milburn and Andrew White, in its release. In 2001, Milburn, Emanuel Knill, and Raymond Laflamme showed that linear optics, single-photon sources, and detectors suffice in principle for efficient quantum computation.
Update, November 12, 2026: QuiX said on November 4 that it had delivered Carina to DLR and was advancing its Dedalo architecture. On November 10, QuiX said it was leading a 2026–2028 PhotonDelta mission toward a “100+ Qubit” photonic computer, without specifying physical or logical qubits. QuiX had reported no Carina hardware results as of November 12.
