Pressure fluctuations in nonideal nondegenerate plasma

Reflecting Boundary Conditions for Classical and Quantum Molecular Dynamics Simulations of Nonideal Plasmas

“…The distribution for the confined system (curve 6) is rather compact and comparable to the one obtained with the "harmonic term" width constraint (curve 2). Similar to the classical case, the sensitivity of the present results with respect to the wall hardness a (see (5)), remaining the only tunable parameter for our confined model, is very low provided that a is large enough. In contrast to that, the results for the width harmonic term depend strongly on the selected "mean width" parameter.…”

“…First we study convergence of the mean potential energy and pressure with the system size growth in the classical MD using different types of boundary conditions. The pressure is obtained using the common virial equation [5,25,37]…”

“…Theoretical studies of strongly coupled Coulomb systems such as electron-ion nonideal plasma [1][2][3][4][5], ion-ion plasma [6], warm dense matter [7][8][9], ion liquids [10], dusty plasmas [11], etc. often rely on atomistic simulations by the methods of classical Molecular Dynamic (MD) and Monte-Carlo (MC).…”

Pressure in electronically excited warm dense metals

“…Despite its fundamental significance, the calculation of pressure in the general context of atomistic modelling and simulation is a subject of on-going research (e.g. [28,29]). On examples of aluminum and gold we are making an attempt to analyze the electronic contribution to the total pressure in 2T-WDM metals and to clarify the representation (1).…”