August 20, 2024 -- Bluefors today announced the immediate availability of a XLDHe High Power System – a cryogen-free, helium-4 powered measurement system that delivers extremely high cooling power for experiments in the 1 K temperature range. The XLDHehp is ideal for demanding applications such as spin qubit quantum computing devices, or single photon detectors for photonic quantum computers.

The XLDHehp gives users the flexibility and power needed to scale up experiments. The system generates extremely high cooling power between 200-700 mW at 1–1.2 K and features side-loading ports for fast exchange of experimental wiring. A large experimental flange of 540 mm, and experimental height options of 175 mm or 776 mm support a wide range of experiments, and fast turnaround options make it possible to scale up the number of experiments carried out.

Powered by either 2 or 3 pulse tube cryocoolers, XLDHehp systems reach a base temperature of <900 mK in 12–16 h. Additional options reduce this time to just 9 hours, as well as decreasing the system warm up time between experiments.

In practical use, the XLDhe High Power System is ideally suited to spin qubit measurements. Spin qubits – a promising, scalable quantum computing modality – rely on magnets to enable coherent control, manipulation and measurement of qubits. With it’s extreme cooling power, large experimental space, superconducting magnet integration, and extensive measurement infrastructure options, the XLDHehp delivers the flexibility and power needed for scaling up spin qubit research.

The cooling power of the XLDHehp is also well suited to 1 K single photon detector applications, helping to reduce thermal noise, improve sensitivity, and provide a stable environment where it is easier to detect single photon events. Applications for single photon detectors include, for example, quantum computing, quantum sensing, and quantum communications.