1. Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
2. Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
3. Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
4. Information Sciences Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States