1. Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602, USA
2. Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242, USA
3. Lawrence Livermore National Laboratory, Livermore, California 94550, USA
4. Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
5. Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA
6. Department of Computational Mathematics, Science and Engineering, Michigan State University, East Lansing, Michigan 48824, USA
7. Department of Physics, Colorado State University, Fort Collins, Colorado 80523, USA
8. Department of Mathematics and Statistics, San Jose State University, San Jose, California 95192, USA