1. Department of Physics and Astronomy, University of Waterloo, Waterloo, ON N2L3G1, Canada
2. Institute for Quantum Computing, University of Waterloo, Waterloo, ON N2L3G1, Canada
3. Department of Physics, University of Illinois at Urbana–Champaign, Urbana, IL 61801
4. Advanced Electronics and Photonics Research Centre, National Research Council of Canada, Ottawa, ON K1A 0R6, Canada