Journal article
An electrically driven single-atom “flip-flop” qubit
R Savytskyy, T Botzem, IF de Fuentes, B Joecker, JJ Pla, FE Hudson, KM Itoh, AM Jakob, BC Johnson, DN Jamieson, AS Dzurak, A Morello
Science Advances | AMER ASSOC ADVANCEMENT SCIENCE | Published : 2023
Abstract
The spins of atoms and atom-like systems are among the most coherent objects in which to store quantum information. However, the need to address them using oscillating magnetic fields hinders their integration with quantum electronic devices. Here, we circumvent this hurdle by operating a single-atom “flip-flop” qubit in silicon, where quantum information is encoded in the electron-nuclear states of a phosphorus donor. The qubit is controlled using local electric fields at microwave frequencies, produced within a metal-oxide-semiconductor device. The electrical drive is mediated by the modulation of the electron-nuclear hyperfine coupling, a method that can be extended to many other atomic a..
View full abstractRelated Projects (1)
Grants
Awarded by Army Research Office
Funding Acknowledgements
The research was supported by the Australian Research Council (grant no. CE170100012), the U.S. Army Research Office (contract no. W911NF-17-1-0200), and the NSW node of the Australian National Fabrication Facility. R.S. acknowledges support from Australian Government Research Training Program Scholarship. R.S. and I.F.d.F. acknowledge support from the Sydney Quantum Academy. All statements of fact, opinion, or conclusions contained herein are those of the authors and should not be construed as representing the official views or policies of the U.S. Army Research Office or the U.S. government. The U.S. government is authorized to reproduce and distribute reprints for government purposes notwithstanding any copyright notation herein.