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Direct Determination of Dynamic Properties of Coulomb and Yukawa Classical One-Component Plasmas
Yu V Arkhipov1, A Askaruly1, A E Davletov1
1Al-Farabi Kazakh National University, IETP, Faculty of Physics and Technology, al-Farabi 71, 050040 Almaty, Kazakhstan.
Abstract:
Dynamic characteristics of strongly coupled classical one-component Coulomb and Yukawa plasmas are obtained within the nonperturbative model-free moment approach without any data input from simulations so that the dynamic structure factor (DSF) satisfies the first three nonvanishing sum rules automatically. The DSF, dispersion, decay, sound speed, and other characteristics of the collective modes are determined using exclusively the static structure factor calculated from various theoretical approaches including the hypernetted chain approximation. A good quantitative agreement with molecular dynamics simulation data is achieved.
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