1. Department of Combinatorics and Optimization, and the Institute for Quantum Computing, University of Waterloo, Waterloo, Canada
2. Department of Computer Science, and Center for Quantum Technologies, and the MajuLab, UMI 3654, National University of Singapore, Queenstown, Singapore
3. Department of Computer Science, and the Institut Quantique, Université de Sherbrooke, Sherbrooke, Canada