Individual electrons trapped and controlled above 1 K, easing cooling limits for quantum computing

Researchers from EeroQ, the quantum computing company pioneering electron-on-helium technology, have published a paper, titled “Sensing and Control of Single Trapped Electrons Above 1 Kelvin,” in Physical Review X that details a significant milestone: the first demonstration of controlling and detecting individual electrons trapped on superfluid helium at temperatures above 1 Kelvin. This work was achieved using on-chip superconducting microwave circuits, a method compatible with existing quantum hardware.