[1] Flatiron Inst, Ctr Computat Quantum Phys, 162 5th Ave, New York, NY 10010 USA
[2] Univ Zurich, Dept Phys, Winterthurerstr 190, CH-8057 Zurich, Switzerland
[3] Max Planck Inst Struct & Dynam Matter, Luruper Chaussee 149, D-22761 Hamburg, Germany
[4] Univ Colorado, Dept Chem, Boulder, CO 80302 USA
[5] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 AJ Nijmegen, Netherlands
[6] Univ Toulouse, Lab Phys Theor, IRSAMC, CNRS,UPS, F-31062 Toulouse, France
[7] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
[8] Max Planck Inst Quantum Opt, Hans Kopfermann Str 1, D-85748 Garching, Germany
[9] Tech Univ Munich, Dept Phys, T42,James Franck Str 1, D-85748 Garching, Germany
[10] Univ Milan, Dipartimento Fis, Via Celoria 16, I-20133 Milan, Italy
[11] Swiss Fed Inst Technol, Theoret Phys, CH-8093 Zurich, Switzerland
[12] Tech Univ Dresden, Inst Sci Comp, Zellescher Weg 12-14, D-01069 Dresden, Germany
[13] CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA
[14] Univ Southern Calif, Southern Calif Earthquake Ctr, 3651 Trousdale Pkwy, Los Angeles, CA 90089 USA
[15] Univ Paris, Lab Mat & Phenomenes Quant, CNRS, F-75013 Paris, France