1. Institute for Quantum Computing, University of Waterloo, Waterloo, OntarioN2L 3G1, Canada
2. Department of Physics & Astronomy, University of Waterloo, Waterloo, OntarioN2L 3G1, Canada
3. Department of Chemistry, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward IslandC1A 4P3, Canada