1. Institute for Quantum Computing, University of Waterloo, Waterloo, ON, Canada N2L 3G1
2. Department of Physics and Astronomy, University of Waterloo, Waterloo, ON, Canada N2L 3G1
3. National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
4. Physics and Engineering Physics Department, Tulane University, New Orleans, LA 70118, USA
5. Department of Chemistry, University of Waterloo, Waterloo, ON, Canada N2L 3G1
6. Perimeter Institute for Theoretical Physics, Waterloo, ON, Canada N2L 2Y5