1. Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
2. Quantum Matter Institute, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
3. Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
4. Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada