Kinetic characterization of strongly coupled systems.
We propose a simple method to determine the local coupling strength Gamma experimentally, by linking the individual particle dynamics with the local density and crystal structure of a 2D plasma crystal. By measuring particle trajectories with high spatial and temporal resolution we obtain the first maps of Gamma and temperature at individual particle resolution. We employ numerical simulations to test this new method, and discuss the implications to characterize strongly coupled systems.
Knapek
C A
CA
Max-Planck-Institute for Extraterrestrial Physics, 85741 Garching, Germany. knapek@mpe.mpg.de
Ivlev
A V
AV
Klumov
B A
BA
Morfill
G E
GE
Samsonov
D
D