Metallic Spin Supersolid Enables Ultralow-Temperature Refrigeration
For the first time, researchers from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, the Institute of Theoretical Physics of CAS, and Shanghai Jiao Tong University have introduced a metal-based cooling strategy that does not rely on the globally scarce isotope helium-3. It is expected to provide a self-sufficient, controllable "super refrigerator" that is critical for advancing frontier quantum technologies.
Ultralow-temperature environments (below 1 kelvin, or -272.15 °C) are essential for quantum computation, precision measurement, and quantum matter studies involving large-scale scientific facilities under extreme conditions. Currently, mainstream dilution refrigeration technology for sub-kelvin cooling relies heavily on helium-3. This dependence acts as a key limiting factor for the developmen...
Feb 14, 2026