[1] Univ Toronto, Dept Chem, Chem Phys Theory Grp, Toronto, ON M5S 3H6, Canada
[2] Weizmann Inst Sci, Dept Chem Phys, IL-76100 Rehovot, Israel
[3] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada
[4] Univ British Columbia, Dept Phys, Vancouver, BC V6T 1Z1, Canada
[5] Univ Toronto, Ctr Quantum Informat & Quantum Control, Toronto, ON, Canada