Superdiffusion in two-dimensional Yukawa liquids.
Superdiffusion of two-dimensional (2D) liquids was studied using an equilibrium molecular dynamics simulation. At intermediate temperatures, the mean-squared displacement, probability distribution function (PDF), and velocity autocorrelation function (VACF) all indicate superdiffusion; the VACF has a long-time tail; and the PDF indicates no Lévy flights. These effects are predicted to occur in 2D dusty plasmas and other 2D liquids that can be modeled with a long-range repulsive potential.
Liu
Bin
B
Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa 52242, USA.
Goree
J
J