Qblox launches integrated Spin Qubit Lab at Delft HQ, begins device measurements
Qblox has established a “Spin Qubit Lab” at its Delft headquarters in the Netherlands and has begun measurements. The lab is a test environment that uses real devices to jointly validate control hardware and firmware, measurement procedures, and third-party software.
Announcement overview
The Spin Qubit Lab integrates a Bluefors dilution refrigerator, quantum dot devices, Qblox control electronics, and measurement and automation software. It currently hosts a SemiQon silicon MOS quantum dot device inside the refrigerator and is performing measurements at base temperature. For control, Qblox is using its Cluster and DC Cluster systems. This configuration handles synchronized multi-channel signal generation and acquisition, stable DC supply, baseband control, readout, and fast feedback within a single system. The DC Cluster suppresses ground loops and reduces interference originating from commercial power supplies that can affect quantum dot control. On the software side, Qblox Scheduler is being used to validate spin qubit measurement procedures on real devices. QuantrolOx software is also integrated to automate charge-stability mapping, quantum dot tuning, and characterization. The facility is funded by the European ARCTIC and SCALLOP projects. Qblox says it will add additional wiring and plans to measure larger devices and a variety of material systems and structures in the future, including Si/SiGe and germanium-based devices.
Key points
- An integrated spin qubit test environment—from dilution refrigerator to control hardware and measurement software—is already operational.
- A SemiQon silicon MOS quantum dot device is installed in a Bluefors dilution refrigerator and is being measured.
- Cluster and DC Cluster provide synchronized handling of DC supply, signal generation/acquisition, readout, and fast feedback.
- Qblox Scheduler measurement procedures and QuantrolOx automated tuning and characterization software are being validated on real hardware.
- ARCTIC and SCALLOP support the research objectives, collaboration framework, and funding.
Technical and business implications
From a technical perspective, operating real spin qubit devices in a permanent lab environment allows integrated evaluation of control hardware, firmware, measurement procedures, and auto-tuning software under the same conditions. A single stack that handles low-noise DC control, channel synchronization, fast feedback, and automated tuning aims to address the increasing complexity of control and tuning burden as devices scale up. From a business perspective, beyond validating its own products, Qblox can use the facility as a demonstration environment that combines partner devices and software. Together with its superconducting-qubit lab, Qblox is broadening its in-house validation capabilities across multiple solid-state qubit approaches. However, the announcement does not include quantitative figures for qubit count or control performance, customer deployments, or timing for commercial availability.
What to watch next
The next focus will be whether measurements on larger devices and on Si/SiGe and germanium platforms are demonstrated after additional wiring is installed. Publication of quantitative evaluations on synchronized control, fast feedback, and noise reduction would make it easier to assess the effectiveness of the integrated architecture. It will also be important to see how much automated tuning reduces man-hours and whether lab validation leads to concrete partner collaborations or external usage examples.
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