Direct Determination of Dynamic Properties of Coulomb and Yukawa Classical One-Component Plasmas.
作者信息
Arkhipov Yu V, Askaruly A, Davletov A E, Dubovtsev D Yu, Donkó Z, Hartmann P, Korolov I, Conde L, Tkachenko I M
机构信息
Al-Farabi Kazakh National University, IETP, Faculty of Physics and Technology, al-Farabi 71, 050040 Almaty, Kazakhstan.
Institute of Solid State Physics and Optics, Wigner Research Centre for Physics, Hungarian Academy of Sciences, P.O. Box 49, 1525 Budapest, Hungary.
出版信息
Phys Rev Lett. 2017 Jul 28;119(4):045001. doi: 10.1103/PhysRevLett.119.045001. Epub 2017 Jul 27.
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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