Precision tomography of a three-qubit electron-nuclear quantum processor in silicon

1School of Electrical Engineering and Telecommunications, UNSW Sydney, Sydney, NSW 2052, Australia 2Centre for Quantum Computation and Communication Technology 3Centre for Quantum Software and Information, University of Technology Sydney, Ultimo, NSW 2007, Australia 4Department of Electronics and Communication Engineering, Faculty of Engineering, Ain Shams University, Cairo, Egypt 5Quantum Performance Laboratory, Sandia National Laboratories, Albuquerque, NM 87185 and Livermore, CA 94550, USA 6Center for Computing Research, Sandia National Laboratories, Albuquerque, NM 87185, USA 7School of Fundamental Science and Technology, Keio University, Kohoku-ku, Yokohama, Japan 8School of Physics, University of Melbourne, Melbourne, VIC 3010, Australia