The equations of state and the structural, thermodynamic, and transport properties of the two- and three-dimensional nonideal dissipative systems consisting of particles interacting with different isotropic pair potentials are studied in a wide range of parameters typical for laboratory dusty plasma. Simple semiempirical expression for the energy density in liquid systems is considered. Comparison of the theoretical and numerical results is presented.
The conditions for formation of monolayer dust structures are investigated for dust grains (interacting via isotropic pair potentials) placed in a confining electric field varying linearly with position. The relationships between the grain interaction potential, the number of grains and the gradient of the confining field of the electric trap are established. A criterion for instability of a monolayer dust structure is proposed.
We investigate the evolution of small systems of strongly interacting active Brownian particles. Metal-coated grains of micron size levitating in gas-discharge plasma are irradiated by laser inducing their active motion. We present the experimentally obtained functions of mean first-passage time dynamic entropy (MFPT) for each grain in a two-dimensional system for various values of their kinetic temperature, and also the values of the fractal dimension of trajectories of these systems and their localization area and match them to the point of transformation of the system.
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