High-fidelity readout and control of a nuclear spin qubit in silicon
Jarryd J Pla, Kuan Y Tan, Juan P Dehollain, Wee H Lim, John JL Morton, Floris A Zwanenburg, David N Jamieson, Andrew S Dzurak, Andrea Morello
NATURE | NATURE PUBLISHING GROUP | Published : 2013
Detection of nuclear spin precession is critical for a wide range of scientific techniques that have applications in diverse fields including analytical chemistry, materials science, medicine and biology. Fundamentally, it is possible because of the extreme isolation of nuclear spins from their environment. This isolation also makes single nuclear spins desirable for quantum-information processing, as shown by pioneering studies on nitrogen-vacancy centres in diamond. The nuclear spin of a (31)P donor in silicon is very promising as a quantum bit: bulk measurements indicate that it has excellent coherence times and silicon is the dominant material in the microelectronics industry. Here we de..View full abstract
Awarded by Australian Research Council Centre of Excellence for Quantum Computation and Communication Technology
Awarded by US Army Research Office
Awarded by Engineering and Physical Sciences Research Council
We thank R. P. Starrett, D. Barber, C. Y. Yang and R. Szymanski for technical assistance and A. Laucht, R. Kalra and J. Muhonen for discussions. This research was funded by the Australian Research Council Centre of Excellence for Quantum Computation and Communication Technology (project number CE11E0096) and the US Army Research Office (W911NF-13-1-0024). We acknowledge support from the Australian National Fabrication Facility.