1. Quantum Artificial Intelligence Laboratory (QuAIL), Exploration Technology Directorate, NASA Ames Research Center, Moffett Field, California 94035, USA
2. USRA Research Institute for Advanced Computer Science, Mountain View, California 94043, USA
3. Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA and Department of Chemistry, University of California, Berkeley, California 94720, USA
4. KBR, 601 Jefferson St., Houston, Texas 77002, USA