Paper Citing NAMD - Abstract
Zhao, Xiongce
Motions of ions in a nanoscale Paul trap from molecular dynamics
MOLECULAR SIMULATION, 35:812-821, 2009
Molecular dynamics simulations were used to study the motion of ions trapped inside a Paul trap of nanometre size. It is found that a single ion can be successfully trapped within nanoseconds if the applied electric voltages are in the range of hundreds of mV and the AC field has a frequency of GHz. The equilibration time and the oscillation amplitudes of the trapped ion depend on both the system temperature and applied voltages. Clusters are formed in the trap when both negatively and positively charged ions are introduced in the system, while only clusters that contain a net charge (non-neutralised clusters) can be trapped. Application of a supplemental DC driving field can effectively drive the ion off the trap centre and out of the trap. Existence of water solvent in the system helps to stabilise the trapping process.
