Single-phonon readout and ground-state cooling with trapped electron brings quantum computing one step closer

https://phys.org/news/2022-10-single-phonon-readout-ground-state-cooling-electron.html

"electron trapped in vacuum interacting with superconducting circuits and trapped ion... able to control temperature electron using microwave fields and optical lasers... oscillation trapped electron... single-phonon readout and ground-state cooling... two hybrid systems they analyzed. "Highly efficient and high-fidelity quantum operations are available in the trapped-electron system," said Osada. "This novel system manifests itself as a new playground for the development of quantum technologies"

Related: Theoretical study: Cooling particles with laser light fields

https://phys.org/news/2023-02-theoretical-cooling-particles-laser-fields.html