Detecting/ controlling individual electrons trapped on superfluid helium above 1°K reduces cooling demands 100X for scalable quantum computing

https://phys.org/news/2025-10-individual-electrons-easing-cooling-limits.html

"EeroQ quantum computing company pioneering electron-on-helium technology... this world-first demonstration achieved using on-chip superconducting microwave circuit with superfluid helium filled microchannel... enables larger/ more practical quantum processors... electrons on helium can provide exceptionally pure/ long-lived qubits"